NIC-NIELIT Scientific Assistant-A 2020

Question 1

A is the father of B and C is the son of D. E is the brother of A. B is the sister of C. How is D related to E?

A	Daughter
B	Brother
C	Brother in Law
D	Sister in Law

Mathematical-Reasoning Blood-Relation-Test Video-Explanation

Question 1 Explanation:

Question 2

Pointing towards a picture, Ramesh said, “That picture is of the sister of the grandson of the father of my maternal uncle”. How is that lady in the picture related to Ramesh?

A	Mother’s sister
B	Cousin (maternal brother)
C	Cousin (maternal sister)
D	Father’s sister

Mathematical-Reasoning Blood-Relation-Test Video-Explanation

Question 2 Explanation:

Question 3

Refer the statement and solve the question according to the conclusions.
Statement:
Some Pigeons are Bird;
Some Birds are Alive
Conclusion:
(I) Some Pigeons are Alive
(II) Some Birds are Pigeons

A	Only (I) follows
B	Only (II) follows
C	Both (I) & (II) follows
D	None follows

Logical-Reasoning Validity-of-Arguments Video-Explanation

Question 3 Explanation:

Question 4

If ‘CONTEMPORARY’ is coded as NOCTEMROPARY then ‘BODARDSITAND’ is the code of which letter?

A	DOBARDTISAND
B	BODDRASITDNA
C	DOBDRATISDNA
D	DOBARDSITAND

Mathematical-Reasoning Coding-and-Decoding Video-Explanation

Question 4 Explanation:

Question 5

Find the number which does not fit into the series
8 12 20 32 50 68

A	20
B	32
C	68
D	50

Mathematical-Reasoning Series-Test Video-Explanation

Question 5 Explanation:

Question 6

Directions - Question number 6 to 10 are based on following information:
There are twelve persons named O, P, Q, R, S, T, U, V, W, X, Y and Z who live in a multi-storey apartment. The apartment has three floors and each floor has four rooms. These 12 persons who live in a set of 12 Rooms can be represented by a Matrix of 3 rows and 4 columns.
→Q lives immediate left below diagonally of a person who lives immediate left below diagonally of T.
→S lives immediate left above diagonally of a person who lives immediate left above diagonally of Z.
→X lives immediate right above diagonally of a person who lives immediate right below diagonally of O.
→P lives immediate right above diagonally of a person who lives immediate right above diagonally of Y.
→T lives immediate left above diagonally of a person who lives third to the right of V.
→Q lives immediate left of a person who lives two rooms below W in the same column.
→R lives to the immediate right of a person who lives immediate right above diagonally of Q. Z is living to the immediate left of U who receives ₹46000 as salary.
→The person who live on one of the floors (left to right) receive salary in the same order ₹50000, ₹47000 and ₹46000.
→The person who live on one of the floors (right to left) receive salary in the same order ₹45000, ₹38000, ₹35000 and ₹40000.
→The person who live on one of the floors (left to right) receive salary in the same order ₹37000, ₹42000, ₹36000 and ₹43000.
What is the aggregate salary of people living at the right end of the apartment?

A	₹ 137000
B	₹ 134000
C	₹ 125000
D	₹ 131000

Logical-Reasoning Data-Interpretation-Addition

Question 7

Directions - Question number 6 to 10 are based on following information:
There are twelve persons named O, P, Q, R, S, T, U, V, W, X, Y and Z who live in a multi-storey apartment. The apartment has three floors and each floor has four rooms. These 12 persons who live in a set of 12 Rooms can be represented by a Matrix of 3 rows and 4 columns.
→Q lives immediate left below diagonally of a person who lives immediate left below diagonally of T.
→S lives immediate left above diagonally of a person who lives immediate left above diagonally of Z.
→X lives immediate right above diagonally of a person who lives immediate right below diagonally of O.
→P lives immediate right above diagonally of a person who lives immediate right above diagonally of Y.
→T lives immediate left above diagonally of a person who lives third to the right of V.
→Q lives immediate left of a person who lives two rooms below W in the same column.
→R lives to the immediate right of a person who lives immediate right above diagonally of Q. Z is living to the immediate left of U who receives ₹46000 as salary.
→The person who live on one of the floors (left to right) receive salary in the same order ₹50000, ₹47000 and ₹46000.
→The person who live on one of the floors (right to left) receive salary in the same order ₹45000, ₹38000, ₹35000 and ₹40000.
→The person who live on one of the floors (left to right) receive salary in the same order ₹37000, ₹42000, ₹36000 and ₹43000.
What is the salary received by a person who lives second to the right of S?

A	₹ 35000
B	₹ 45000
C	₹ 37000
D	₹ 38000

Logical-Reasoning Data-Interpretation-Addition

Question 8

Directions - Question number 6 to 10 are based on following information:
There are twelve persons named O, P, Q, R, S, T, U, V, W, X, Y and Z who live in a multi-storey apartment. The apartment has three floors and each floor has four rooms. These 12 persons who live in a set of 12 Rooms can be represented by a Matrix of 3 rows and 4 columns.
→Q lives immediate left below diagonally of a person who lives immediate left below diagonally of T.
→S lives immediate left above diagonally of a person who lives immediate left above diagonally of Z.
→X lives immediate right above diagonally of a person who lives immediate right below diagonally of O.
→P lives immediate right above diagonally of a person who lives immediate right above diagonally of Y.
→T lives immediate left above diagonally of a person who lives third to the right of V.
→Q lives immediate left of a person who lives two rooms below W in the same column.
→R lives to the immediate right of a person who lives immediate right above diagonally of Q. Z is living to the immediate left of U who receives ₹46000 as salary.
→The person who live on one of the floors (left to right) receive salary in the same order ₹50000, ₹47000 and ₹46000.
→The person who live on one of the floors (right to left) receive salary in the same order ₹45000, ₹38000, ₹35000 and ₹40000.
→The person who live on one of the floors (left to right) receive salary in the same order ₹37000, ₹42000, ₹36000 and ₹43000.
What is the sum of salaries of Y and P?

A	₹ 90000
B	₹ 99000
C	₹ 93000
D	₹ 89000

Logical-Reasoning Data-Interpretation-Addition

Question 9

Directions - Question number 6 to 10 are based on following information:
There are twelve persons named O, P, Q, R, S, T, U, V, W, X, Y and Z who live in a multi-storey apartment. The apartment has three floors and each floor has four rooms. These 12 persons who live in a set of 12 Rooms can be represented by a Matrix of 3 rows and 4 columns.
→Q lives immediate left below diagonally of a person who lives immediate left below diagonally of T.
→S lives immediate left above diagonally of a person who lives immediate left above diagonally of Z.
→X lives immediate right above diagonally of a person who lives immediate right below diagonally of O.
→P lives immediate right above diagonally of a person who lives immediate right above diagonally of Y.
→T lives immediate left above diagonally of a person who lives third to the right of V.
→Q lives immediate left of a person who lives two rooms below W in the same column.
→R lives to the immediate right of a person who lives immediate right above diagonally of Q. Z is living to the immediate left of U who receives ₹46000 as salary.
→The person who live on one of the floors (left to right) receive salary in the same order ₹50000, ₹47000 and ₹46000.
→The person who live on one of the floors (right to left) receive salary in the same order ₹45000, ₹38000, ₹35000 and ₹40000.
→The person who live on one of the floors (left to right) receive salary in the same order ₹37000, ₹42000, ₹36000 and ₹43000.
Who among the following lives third to the left of U?

A	O
B	Q
C	T
D	S

Logical-Reasoning Logical-Problems

Question 10

Directions - Question number 6 to 10 are based on following information:
There are twelve persons named O, P, Q, R, S, T, U, V, W, X, Y and Z who live in a multi-storey apartment. The apartment has three floors and each floor has four rooms. These 12 persons who live in a set of 12 Rooms can be represented by a Matrix of 3 rows and 4 columns.
→Q lives immediate left below diagonally of a person who lives immediate left below diagonally of T.
→S lives immediate left above diagonally of a person who lives immediate left above diagonally of Z.
→X lives immediate right above diagonally of a person who lives immediate right below diagonally of O.
→P lives immediate right above diagonally of a person who lives immediate right above diagonally of Y.
→T lives immediate left above diagonally of a person who lives third to the right of V.
→Q lives immediate left of a person who lives two rooms below W in the same column.
→R lives to the immediate right of a person who lives immediate right above diagonally of Q. Z is living to the immediate left of U who receives ₹46000 as salary.
→The person who live on one of the floors (left to right) receive salary in the same order ₹50000, ₹47000 and ₹46000.
→The person who live on one of the floors (right to left) receive salary in the same order ₹45000, ₹38000, ₹35000 and ₹40000.
→The person who live on one of the floors (left to right) receive salary in the same order ₹37000, ₹42000, ₹36000 and ₹43000.
What is the sum of the salaries received by the persons living on the top floor of the apartment?

A	₹ 158000
B	₹ 193000
C	₹ 157000
D	₹ 161000

Logical-Reasoning Data-Interpretation-Addition

Question 11

Directions for question number 11 and 12:
Study the following information carefully and answer the question:
Group of girl’s gossip with each other. All are sitting surrounding a round table. The names of the girls are Shiksha, Radha, Chinu, Snigdha and Rani. It is not necessary that they are sitting in the order of the name as mentioned here. Radha is second to the right of Shiksha. Shiksha doesn’t sit with Chinu. Rani is second to the right of Radha. Radha sits near Snigdha.
Q11. If Radha and Snigdha change their places then who will be second to the left of Rani?

A	Radha
B	Snigdha
C	Shiksha
D	None of the options

Logical-Reasoning Round-Table-Problems Video-Explanation

Question 11 Explanation:

According to the given passage the seating order is

If Radha and Snigdha change their places then Snigdha will be second to the left of Rani

Question 12

Directions for question number 11 and 12:
Study the following information carefully and answer the question:
Group of girl’s gossip with each other. All are sitting surrounding a round table. The names of the girls are Shiksha, Radha, Chinu, Snigdha and Rani. It is not necessary that they are sitting in the order of the name as mentioned here. Radha is second to the right of Shiksha. Shiksha doesn’t sit with Chinu. Rani is second to the right of Radha. Radha sits near Snigdha.
Q12. Who sits to the left of Shiksha?

A	Rani
B	Radha
C	Chinu
D	Snigdha

Logical-Reasoning Round-Table-Problems Video-Explanation

Question 12 Explanation:

Question 13

Directions for question number 13 to 15:
Relationship between different elements is provided in the statements. The statements are followed by conclusions. Study the conclusions based on the given statement and choose the correct answer.
Q13: T >= U = V <= W < X; V >= Y
Conclusions:
(I) Y <= T
(II) U >= X

A	if only conclusion (I) follows
B	if only conclusion (II) follows
C	if neither (I) nor (II) conclusion follows
D	if both (I) and (II) conclusions follow

Logical-Reasoning Validity-of-Arguments

Question 13 Explanation:

T >= U = V <= W < X; V >= Y
T>= U= V>= Y
Y <= T

Question 14

Directions for question number 13 to 15:
Relationship between different elements is provided in the statements. The statements are followed by conclusions. Study the conclusions based on the given statement and choose the correct answer.
Q13: T >= U = V <= W < X; V >= Y
Q14. P <= Q <= R > S; T >= R; S >= U
Conclusions:
(I) T > S
(II) U < R

A	if only conclusion (I) follows
B	if only conclusion (II) follows
C	if neither (I) nor (II) conclusion follows
D	if both (I) and (II) conclusions follow

Logical-Reasoning Validity-of-Arguments

Question 14 Explanation:

P <= Q <= R > S; T >= R; S >= U
T >= R > S R > S>=U
T>S U

Question 15

Directions for question number 13 to 15:
Relationship between different elements is provided in the statements. The statements are followed by conclusions. Study the conclusions based on the given statement and choose the correct answer.
Q13: T >= U = V <= W < X; V >= Y
Q15: A <= B < C >= D; C <= E <= F
Conclusions:
(I) F >= D
(II) A > E

A	if only conclusion (I) follows
B	if only conclusion (II) follows
C	if neither (I) nor (II) conclusion follows
D	if both (I) and (II) conclusions follow

Logical-Reasoning Validity-of-Arguments

Question 15 Explanation:

A <= B < C >= D; C <= E <= F
D <= C <= E < F
F >= D

Question 16

Five people are standing in a row. Aman is standing next to Karan but not adjacent to Tanuj. Radhika is standing next to Priyanka who is standing on the extreme left and Tanuj is not standing next to Radhika. Who are Standing adjacent to Aman?

A	Radhika and Karan
B	Karan and Tanuj
C	Karan and Priyanka
D	Radhika and Tanuj

Logical-Reasoning Logical-Problems Video-Explanation

Question 16 Explanation:

Question 17

Complete the following series
4, 27, 256, 3125, _____

A	46656
B	6250
C	800000
D	1024

Mathematical-Reasoning Series-Test Video-Explanation

Question 17 Explanation:

2² = 4
3³ = 27
4⁴= 256
5⁵= 3125
6⁶= 46656

Question 18

A Businessman purchases an item at a certain price and marks its price up by 30%. He sells the item at a certain discount on markup price and makes a net profit of 4% on the whole transaction. Find the discount given by a businessman on markup price.

A	10
B	15
C	26
D	20

Mathematical-Reasoning Profit-and-Loss Video-Explanation

Question 19

Ramesh’s father is a paediatrician. Ram’s father is a trader. Krishan’s father is a school teacher. Krishan falls ill. Where should his father take him?

A	to home
B	to school
C	to Ramesh’s father
D	to Ram’s father

Logical-Reasoning Logical-Problems Video-Explanation

Question 19 Explanation:

Ramesh’s father is a paediatrician
Ram’s father is a trader
Krishan’s father is a school teacher
Krishan falls ill
According to the given input Ramesh's father is a paediatrician. So, they went to Ramesh’s father.

Question 20

What is the total number of ways to reach A to B in the network given?

A	12
B	16
C	20
D	22

Logical-Reasoning Logical-Problems Video-Explanation

Question 21

Find the missing number.

A	14
B	10
C	9
D	3

Mathematical-Reasoning Missing-Number Video-Explanation

Question 22

If 5% income of P is equal to 15% income of Q and 10% income of Q is equal to 20% income of R. If income of R is ₹ 2000, then what are the incomes of P and Q respectively?

A	₹ 4000 and ₹ 8000
B	₹ 12000 and ₹ 4000
C	₹ 15000 and ₹ 5000
D	₹ 18000 and ₹ 6000

Mathematical-Reasoning Percentage Video-Explanation

Question 22 Explanation:

5%P = (15/100)*Q
(10/100)*Q = (20/100)*R
(20/100)*2000
=4000
(10/100)*Q = 4000
Q = 4000

(5/100)*P = (15/100)*4000
=600
P = (600*100)/5
P=12000

Question 23

Directions for question number 23 to 26:
Answer the questions on the basis of the data given below:
O is X’s father
Y is Z’s mother
P is O’s mother
X is Z’s sister
Q23. If P has a daughter Q, then how is Q related to Z?

A	Aunt
B	Mother
C	Sister
D	Daughter

Mathematical-Reasoning Blood-Relation-Test Video-Explanation

Question 23 Explanation:

If P has a daughter Q, then Q related to Z is Aunt.

Question 24

Directions for question number 23 to 26:
Answer the questions on the basis of the data given below:
O is X’s father
Y is Z’s mother
P is O’s mother
X is Z’s sister
Q24. How is Y related to O?

A	Wife
B	Sister
C	Mother
D	Daughter

Mathematical-Reasoning Blood-Relation-Test Video-Explanation

Question 24 Explanation:

Y related to O is wife.

Question 25

Directions for question number 23 to 26:
Answer the questions on the basis of the data given below:
O is X’s father
Y is Z’s mother
P is O’s mother
X is Z’s sister
Q25. How is O related to Z?

A	Brother
B	Cousin
C	Father
D	Uncle

Mathematical-Reasoning Blood-Relation-Test Video-Explanation

Question 25 Explanation:

O related to Z is father.

Question 26

Directions for question number 23 to 26:
Answer the questions on the basis of the data given below:
O is X’s father
Y is Z’s mother
P is O’s mother
X is Z’s sister
Q26. How is P related to X?

A	Mother
B	Grandmother
C	Sister
D	Daughter

Mathematical-Reasoning Blood-Relation-Test Video-Explanation

Question 26 Explanation:

P related to X is Grandmother.

Question 27

14, 28, 20, 20, 40, 32, 64, _______

A	52
B	56
C	96
D	128

Mathematical-Reasoning Series-Test Video-Explanation

Question 27 Explanation:

Question 28

5 16 49 104 181 ______

A	271
B	298
C	280
D	281

Mathematical-Reasoning Series-Test Video-Explanation

Question 28 Explanation:

Question 29

In a certain code, ‘CONSIDER’ is written as RMNBSFEJ, how is ‘MONOPOLY’ written in that code?

A	LNMNZMPQ
B	NMNLZMPQ
C	POPNXKNO
D	NMNLXKNO

Mathematical-Reasoning Coding-and-Decoding Video-Explanation

Question 29 Explanation:

Question 30

Directions for question number 30 to 31:
Two statements followed by four conclusions numbered from (I) to (IV) are given. You have to take the two statements to be true even if these seem to be at variance from the commonly known facts. Read all the conclusions and decide which of the given conclusions logically follow from the two given statements disregarding commonly known facts.
Q30. All Shoes are Socks
Some Socks are Gloves
Conclusions:
(I) Some Shoes are Gloves
(II) Some Socks are Shoes
(III) All Gloves are Shoes
(IV) No Shoes are Gloves

A	Only (I) follows
B	Only (II) follows
C	Only (III) follows
D	Only (IV) follows

Logical-Reasoning Validity-of-Arguments Video-Explanation

Question 30 Explanation:

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