Scientific Assistance CS 15-10-2017

Question 1
The difference between the compound interest and the simple earned at the end of 3​ rd​ year on a sum of money at a rate of 10% per annul is Rs. 77.5. What is the sum?
A
Rs. 3,500
B
Rs. 2,500
C
Rs. 3,000
D
Rs. 2,000
Question 1 Explanation: 
Let principal be ‘x’
S.I = P T R / 100
S.I = X * 3 * 10 / 100
C.I = [ P (1 + (R / 100)T) - P]
C.I = [ X (1+ (10 / 100)3) - X]
C.I = 331X / 1000
Difference between Compound interest and Simple interest is 77.5
( 331X / 1000 ) - ( 3X / 10) = 77.5
31x / 1000 = 77.5
x = 2500.
Question 2
Aamir and Birju can cut 5000g of wood in 20 min. Birju and Charles can cut 5000g of wood in 40 min. Charles and Aamir cut 5 kg of wood in 30 min. How much time Charles will take to cut 5 kg wood alone?
A
120 min
B
48 min
C
240 min
D
120 min
Question 2 Explanation: 
Here in this question 5000g means 5kg only
So from that question Aamir (A) Birju (B) Charles (C)
Let Aamir, Birju and Charles alone can complete the work in A, B and C minutes respectively, then
1 min. work of (A+B)=1/20, (B+C)=1/40 and (C+A)=1/30
A + B + C = 13/240
1 min. work of C = (A+B+C) - (A+B) = 13/240 - 1/20 = 1/240
So C alone can complete the work in 240 min.
Question 3
An alloy contains copper and zinc in the ratio 5 : 3 and another contains copper and tin in the ratio 8 : 5, If equal weights of the two are melted together to form a 3​ rd​ alloy, find the weight of tin per kg in the new alloy.
A
40/129
B
5/13
C
5/26
D
28/5
Question 3 Explanation: 
Amount of copper in first alloy is 5x/8 and zinc is 3x/8.
Amount of copper in second alloy is 8x/13 and tin is 5x/13.
So after mixing tin is available in 2 alloy only that means in 3rd alloy 5x/13/2x
Tin present in 3rd alloy is 5/26.
Question 4
X is a whole number. If the only common factors of X and X2 are 1 and X, then X is _______
A
1
B
a perfect square
C
an odd number
D
a prime number
Question 4 Explanation: 
A number that is divisible only by itself and 1 is called prime number.
Question 5
Line AB is 24 metres in length and tangent to the inner one of the two concentric circles at point C, Points A and B lie on the circumference of the outer circle. It is known that the radii of the two circles are integers. The radius of the outer circle is
A
13m
B
5 m
C
7 m
D
4m
Question 5 Explanation: 

Given data,
AB=24cm
CB=12cm
θC=5cm(Assume)
θB=5​ 2​ +12​ 2​ =169
θB=13cm
Note: They forgot to mention the value 5. If we are considering value=5 then answer should be A.
Question 6
Monisha is working with a real estate agent to find a location for the kids’ toy store she plans to open in her town. She is looking for a place that is either in the centre or not too far from the centre of town. It should also be attractive for the right kind of footfall too. Which of the following locations should Monisha’s agent call to her attention?
A
a storefront in a new high-rise building near the train station in the center of town whose occupants are mainly young, childless professionals who use the train to commute to their offices each day
B
a little shop three blocks away from the town’s main street, located across the street from an elementary school and next door to an ice cream store
C
a stand-alone storefront on a quiet residential street ten blocks away from the town’s center
D
a storefront in a small a strip mall located on the outskirts of town that is also occupied by a pharmacy and a dry cleaner
Question 6 Explanation: 
This option is both near the center of town and in a location where children and their parents are sure to be around. This is the only option that meets both of Monisha’s requirements.
Question 7
Reading is a psycholinguistic guessing game. To read critically is a skill as it is a demanding process. One must slow down one’s reading and, with a pencil in hand, perform specific operations on the text. Mark up the text with reactions, conclusions and questions. When one reads, one becomes an active participant.
A
critical reading is a slow, dull, but essential process.
B
the best critical reading happens at critical times in a person’s life.
C
readers should get in the habit of questioning the truth of what they read.
D
critical reading requires thoughtful and careful attention
Question 7 Explanation: 
Option-A FALSE: The author never says that reading is dull.
Option-B,C FALSE: Not related to given paragraph.
Option-D TRUE: The author stresses the need to read critically by performing thoughtful and careful operations on the text.
Question 8
Find the missing term:
60, 40, 55, 45, 50, 50,?
A
45
B
50
C
55
D
60
Question 8 Explanation: 
Question 9
Find the missing alphabet:
T, r, O, m, J,?
A
h
B
i
C
I
D
g
Question 9 Explanation: 
In between r and T there is letter is s
Likewise m and O letter is n
Same h is the next letter to fit in that sequence
Question 10
Here are some words translated from an artificial language.
Qmelaqali means fruitcake
Qalitiimmeo means cakewalk
Useguamao means buttercup
Which word could mean “cupcake”?
A
qalitiiqali
B
amaotiimmeo
C
pakitreft
D
amaoqali
Question 10 Explanation: 
Qmelaqali→ fruitcake
We can divide artificial language into parts.
Qmela→ fruit
qali→ cake
Qalitiimmeo→ cakewalk
We can divide artificial language into parts.
Qali→ cake
tiimmeo→ walk
Useguamao → buttercup
We can divide artificial language into parts.
Usegu→ butter
amao→ cup
cupcake→ ?
amao→ cup
qali→ cake
So, option-D is correct answer.
Question 11
A man walks 5 Km towards south and then turns to the right. After walking 3 Km he turns to the left and walks 5 Km. Now in which direction is he from the starting place?
A
West
B
South
C
North-East
D
South- West
Question 11 Explanation: 
Question 12
If the consonants in the word ‘DROVE’ are first arranged alphabetically and the vowels are put in between two pairs of consonants in the alphabetical order, which of the following will be the fourth from the right end after the rearrangement?
A
D
B
E
C
R
D
O
Question 12 Explanation: 
In the word DROVE we have two vowels
Those are O and E
After consonants are arranged in alphabetically we got the word like DRV
But we have two place vowels in between two pairs of consonants we got finally DEROV
So right from fourth letter is E
Question 13
There is a queue in a ticketing office. Amanda is 10​ th​ from the front while Murthy is 25​ th from behind and Marta is just in the middle of the two. If there be 50 persons in the queue. What position does Marta occupy from the front?
A
16
B
18
C
15
D
17
Question 13 Explanation: 
Question 14
There are five janitors. Pali, Qureshi, Rohan, Sant and Timber. They all have a different height, Qureshi is shorter than only Timber and Sant is shorter than Pali and Qureshi. Who among them is the shortest?
A
Rohan
B
Sant
C
Pali
D
Data inadequate
Question 14 Explanation: 
From that question we can decide Pali Quereshi sant and timber but Rohan is not mentioned there. So Data inadequate is answer.
Question 15
A $ B means A is the father of B; A # B means A is the sister of B; A * B means A is the daughter of B and A @ B means A is the brother of B. Which of the following indicates that M is the wife of Q?
A
Q $ R # T @ M
B
Q $ R @ T # M
C
Q $ R * T # M
D
Q $ R @ T * M
Question 15 Explanation: 
Q $ R means R’s father is Q
R @ T means T’s brother is R
T * M means M’s Daughter T
Finally M’s Daughter is T and T’s Brother is R and R’s father is Q so Q’s wife is M.
Question 16
Count the number of squares in the given figure.
A
32
B
30
C
29
D
28
Question 16 Explanation: 
For this type of questions there is one formula that is
[ n (n+1)(2n+1) ] / 6
Here n is 4 because it’s 4 x 4
[ 4 (4+1)(8+1) ] / 6
30
Question 17
Who was the Viceroy of India, when Quit India Resolution was passed in 1942?
A
Lord Linlithgow
B
Lord Wavell
C
Lord Willingdon
D
Lord Mountbatten
Question 18
When was the East India Association set up?
A
1866
B
1857
C
1836
D
1885
Question 19
Who was the Spanish navigator who set out to discover India, but instead landed on the soil of America?
A
Christopher Columbus
B
Vasco Da Gama
C
James Cook
D
None of above
Question 20
Which dynasty was ruling over north India when Alexander the great invaded India?
A
Gupta Dynasty
B
Maurya Dynasty
C
Sakya Dynasty
D
Nanda Dynasty
Question 21
The roads of cities in the Indus Valley Civilization generally divided the city into
A
Rectangular Blocks
B
Circular Blocks
C
Triangular Blocks
D
None of above
Question 22
In which year was Pulitzer Prize established?
A
1917
B
1918
C
1922
D
1928
Question 23
‘Kanchipuram’ is in which of the following states?
A
Andhra Pradesh
B
Orissa
C
Kerala
D
Tamil Nadu
Question 24
Which of the following is not a chief organ of the United Nations Organizations?
A
International Labour Organisation
B
Security Council
C
International Court of Justice
D
General Assembly
Question 25
Which of the following is not a member of G-15?
A
Indonesia
B
Malaysia
C
Columbia
D
India
Question 26
The group of metals Co, Ni, Fe may best called as
A
Transition metals
B
Main group metals
C
Alkali metals
D
Rare metals
Question 27
Non stick cooking utensils are coated with
A
Black paint
B
PVC
C
Teflon
D
Polystyrene
Question 28
The international township built near Pondicherry in India in coloration with UNEESCO is called
A
Elbaville
B
Auroville
C
Gayaville
D
Broadway
Question 29
Irvin sold a book at a profit of 12%. If Irvin had sold it for Rs. 18 more, then 18% would have been gained. Find the cost price.
A
Rs. 600
B
Rs. 300
C
Rs. 400
D
Rs. 200
Question 29 Explanation: 
Explanation: Let CP = 100%
Sold on 12% profit means sold on 112%
now 18% would have been gained means 118% if Rs 18 was more it means 118% - 112% = 18 Rs
so 6%=18Rs
so 100% = (18/6)×100 = 3× 100 = 300 Rs
CP = 300
Question 30
In a group of 7 people, the average age is found to be 17 years. Two more people joined with an average age 19 years. One person left the group whose age was 25 years. What is the new average age of the group?
A
17.5 Years
B
16.5 Years
C
18 Years
D
16 Years
Question 30 Explanation: 
7 people, the average age is found to be 17 years means 17 * 7 = 119
Two more joined with an average age 19 years means 19 * 2 = 38 So total is 157
But one person left from that group whose age is 25 years 157 - 25 = 132
Remaining average of 8 people is 132 / 8
16.5 Year
Question 31
A 300 meter long metro train crosses a platform in a metro station in 39 seconds while it crosses a lamp post in 18 seconds. What is the length of the platform?
A
250 meter
B
350 meter
C
520 meter
D
300 meter
Question 31 Explanation: 
Speed = Distance/time = 300/18 = 50/3 m/sec
Let the length of the platform be x meters
Distance = Speed * Time
x+300 = (50/3) * 39
x = 350
Question 32
Assume that a sum of money is divided equally among n girls. Each girl will receive $ 60. If another girl is added to the group and the sum is divided equally among all the girls, each child girl a $ 50 share. What is the sum of money?
A
$ 3000
B
$ 300
C
$ 110
D
$ 10
Question 32 Explanation: 
From that question 60 * n = 50 (n + 1)
n = 5
so sum of money is 60 * 5 = 300
Question 33
A tank can be filled by one tap in 10 minutes and by another in 30 minutes. Both the taps are kept open for 5 minutes and then the first one is shut off. In how many minutes more is the tank completely filled?
A
5
B
7.5
C
10
D
12
Question 33 Explanation: 
A tank can be filled in 10 mins
another one is in 30 mins and those taps are opened for 5 mins
so in one min one tap is 1/10 another one is 1/30
both can tank open for 5 mins so (1/10 + 1/30 ) * 5
= (2/15) * 5
= 10/15
= 2⁄3
Remaining work is 1- (2⁄3)
= 1⁄3
The left work has to be done by first Tap because first is shut off.
Work will be completed by Second Tap in= (1⁄3) * 30 = 10
Question 34
From the four choices provided, choose the analogy that is most similar to the one in the question.
Wealth : Poverty
A
part: whole
B
good: excellent
C
prodigal : chary
D
wicked : sinful
Question 34 Explanation: 
Wealth is opposite to Poverty and Prodigal opposite word is chary.
Wealth: an abundance of valuable possessions or money
Poverty: The state of being extremely poor.
Prodigal: spending money or using resources freely and recklessly
chary: Cautiously or suspiciously reluctant to do something.
Question 35
From the four choices provided, choose the analogy that is most similar to the one in the question.
Misfortune : Catastrophe
A
miniature : big
B
limited : infinite
C
knowledge : learning
D
generosity : parsimony
Question 35 Explanation: 
Misfortune is related to Catastrophe and knowledge is related to learning.
Misfortune: An unfortunate condition or event.
Catastrophe: An event causing great and usually sudden damage or suffering.
Question 36
From the four choices provided, choose the analogy that is most similar to the one in the question.
Molecule : Atoms
A
family : sisters
B
light : bulb
C
tissue : cells
D
body : limb
Question 36 Explanation: 
Molecule is a group of atoms bonded together.
Tissue is any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.
Question 37
From the four choices provided, choose the analogy that is most similar to the one in the question.
Limp : Walk
A
flap : fly
B
run : race
C
stutter : talk
D
chew : digest
Question 37 Explanation: 
Limp is related to walk and shutter is related to talk.
Limp: Walk with difficulty, typically because of a damaged or stiff leg or foot.
Question 38
From the four choices provided, choose the analogy that is most similar to the one in the question.
Riddle : Solve
A
mirage : illusion
B
joke : amuse
C
tangle : unravel
D
target : aim
Question 38 Explanation: 
Riddle is related to Solve and tangle is related to unravel
Riddle: A question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning.
Tangle: Twist together into a confused mass.
unravel: undo (twisted, knitted, or woven threads).
Question 39
Fact 1 : All chickens are birds.
Fact 2 : Some chickens are hens.
Fact 3 : Female birds lay eggs.
If the first three statements are facts, which of the following statements must also be a fact? i. All birds lay eggs.
ii. Hens are birds.
iii. Some chickens are not hens.
A
ii only
B
ii and iii only
C
I, ii and iii
D
None of the statements is a known fact
Question 39 Explanation: 

According to venn diagram, (i) is FALSE because male birds never lay eggs. (ii) and (iii) are TRUE
Question 40
What is the most essential thing for election?
A
President
B
Voter
C
November
D
Nation
Question 41
What is the most essential thing for ovation?
A
Outburst
B
bravo
C
applause
D
encore
Question 42
Introducing a man to her husband, a woman said, “His brother’s father is the only son of my grandfather.”How is the woman related to this man?
A
Mother
B
Aunt
C
Sister
D
Daughter
Question 42 Explanation: 
Only son of her grandfather -- Her father;
Man's brother's father -- man's father.
So, man's father is her father i.e., She is the man's sister.
Question 43
Pointing to a photograph, a man said, “I have no brother or sister but that man’s father is my father’s son.” Whose photograph was it?
A
His Own
B
His Son
C
His Father
D
His Grandfather
Question 43 Explanation: 
Since the person who is telling has no brother or sister, so his father son is he himself.
So the man in the photograph is his son.
Question 44
Find the number of quadrilaterals in the given figure.
A
6
B
7
C
9
D
11
Question 44 Explanation: 
→ The word "quadrilateral" is derived from the Latin words quadri, a variant of four, and latus, meaning "side".
→ A quadrilateral is a polygon with four edges (or sides) and four vertices or corners.
→ According to figure, we can label first and get total quadrilaterals.

Quadrilaterals are 1234, 1245, 1246, 1248, 3481, 3451, 3461, 4517, 4561, 6178 and 1748.
Question 45
Count the number of convex pentagons in the adjoining figure.
A
16
B
12
C
8
D
4
Question 45 Explanation: 
A convex polygon is a simple polygon (not self-intersecting) in which no line segment between two points on the boundary ever goes outside the polygon.

The pentagons are 12468, 34682, 56824, 78246, 13467, 35681, 57823, 71245, 24578, 46712, 68134 and 82356.
Question 46
There is a family of six people whose nicknames are Pat, Qat, Rat, Sat, Tat and Uat. Their professionals are Engineer, Doctor, Teacher, Salesman, Manager and Lawyer. There are two married couples in the family. The Manager is the grandfather of Uat, who is an Engineer Rat, the Salesman, is married to the lady Teacher Qat is the mother of Uat and Tat. The Doctor, Sat is married to the Manager.

How many male members are there in the family?
A
Two
B
Three
C
Four
D
Data Inadequate
Question 46 Explanation: 
Question 47
There is a family of six people whose nicknames are Pat, Qat, Rat, Sat, Tat and Uat. Their professionals are Engineer, Doctor, Teacher, Salesman, Manager and Lawyer. There are two married couples in the family. The Manager is the grandfather of Uat, who is an Engineer Rat, the Salesman, is married to the lady Teacher Qat is the mother of Uat and Tat. The Doctor, Sat is married to the Manager.

What is the professional of Pat?
A
Lawyer
B
Lawyer or Teacher
C
Manager
D
None of these
Question 47 Explanation: 
Question 48
There is a family of six people whose nicknames are Pat, Qat, Rat, Sat, Tat and Uat. Their professionals are Engineer, Doctor, Teacher, Salesman, Manager and Lawyer. There are two married couples in the family. The Manager is the grandfather of Uat, who is an Engineer Rat, the Salesman, is married to the lady Teacher Qat is the mother of Uat and Tat. The Doctor, Sat is married to the Manager.

Who are the married couples in the family?
A
Pat-Qat and Sat-Rat
B
Rat-Uat and Sat-Tat
C
Pat-Tat and Sat-Rat
D
Pat-Sat and Rat-Qat
Question 48 Explanation: 
Question 49
There is a family of six people whose nicknames are Pat, Qat, Rat, Sat, Tat and Uat. Their professionals are Engineer, Doctor, Teacher, Salesman, Manager and Lawyer. There are two married couples in the family. The Manager is the grandfather of Uat, who is an Engineer Rat, the Salesman, is married to the lady Teacher Qat is the mother of Uat and Tat. The Doctor, Sat is married to the Manager.

How Pat is related to Tat?
A
Father
B
Grandfather
C
Mother
D
Grandmother
Question 49 Explanation: 
Question 50
Shirin went to a bakery and bought items worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?
A
Rs. 12
B
Rs. 19.70
C
Rs. 19.10
D
Rs. 18.80
Question 50 Explanation: 
Total cost of the items he purchased = Rs.25
Given that out of this Rs.25, 30 Paise is given as tax => Total tax incurred = 30 Paise = Rs.30/100
Let the cost of the tax free items = x
Given that tax rate = 6%
( 25 - 30/100 - x ) * (6/100) = 30 / 100
6(25−0.3−x)=30
x=25−0.3−5=19.7
Question 51
The rate of simple interest on a sum of money is 6 percent per annum for the first 3 years, 8 per cent per annum for the next 5 years and 10 per cent per annum for the period beyond 8 years. If the simple interest accrued by the sum for a total period of 10 years is Rs. 1,560, what is the sum?
A
Rs. 1,500
B
Rs. 3,000
C
Rs. 2,000
D
Data Inadequate
Question 51 Explanation: 
Sum = (1560 * 100 ) / ( 3 * 6 + 8 * 5 + 2 * 10 ) = 2000
Question 52
Adrian starts a start-up with a capital of Rs. 85,000. Brian joins in the start-up with Rs. 42,500 after sometime. For how much period does Brian join, if the profits at the end of the year are divided in the ratio of 3 : 1?
A
5 months
B
6 months
C
7 months
D
8 months
Question 52 Explanation: 
Let B joins for X months.
Then,
(Profit of A)/(Profit of B) = 3/1
(85000 * 12)/(42500 *X) = 3/1
85000 * 12 = 42500 * 3 * X
X = 8.
B Joined for 8 months
Question 53
A car travels at an average of 50 miles per hour for 2.5 hours and then travels at a speed of 70 miles per hour for 1.5 hours. How far did the car travel in the entire 4 hours?
A
210 miles
B
230 miles
C
250 miles
D
260 miles
Question 53 Explanation: 
Speed= 50 miles/ hour Time=2.5 hour
speed=70 miles / hour Time=1.5 hour
Speed= Distance/ time
Distance= speed x Time
=50×2.5+70×1.5
=125+105
=230 miles
Question 54
By selling 45 limes for Rs. 40, a woman loses 20%. How many should she sell for Rs. 24 to gain 20% in the transaction?
A
16
B
18
C
20
D
22
Question 54 Explanation: 
SP of 45 limes is Rs.40
loss = 20%
So CP of 45 limes would be 40*100/80= Rs. 50
To gain 20% She should sell these 45 limes for =50*20/100=Rs. 60
Now If she sells for Rs. 60 = 45 limes
So for Rs. 24 he would sell = (24/60)*45 = 18 limes
Question 55
The prestigious Ramon Magsaysay Award was conferred upon Ms. Kiran Bedi for her excellent contribution to which of the following fields?
A
Literature
B
Community Welfare
C
Government
D
Journalism
Question 56
Who among the following is not a recipient of ‘Dada Saheb Phalke’ Award?
A
Ramanand Sagar
B
Raj Kapoor
C
V. Shantaram
D
Ashok Kumar
Question 57
What is part of a database that holds only one type of information?
A
Report
B
Field
C
Record
D
File
Question 57 Explanation: 
Record holds only specific and one type of information.
Question 58
‘.JPG’ extension refers usually to what kind of file?
A
System file
B
Animation/movie file
C
MS Encarta document
D
Image file
Question 58 Explanation: 
‘.JPG’ extension used for image files.
Question 59
Which of the following is not written by Munshi Premchand?
A
Gaban
B
Godan
C
Guide
D
Manasorovar
Question 60
The famous Dilwara Temples are situated in
A
Uttar Pradesh
B
Rajasthan
C
Maharashtra
D
Madhya Pradesh
There are 60 questions to complete.