TIFR PHD 2022
August 11, 2023GATE 2023
August 12, 2023aptitude
| Question 41 |
In a class of 200 students, 125 students have taken Programming Language course, 85 students have taken Data Structures course, 65 students have taken Computer Organization course; 50 students have taken both Programming Language and Data Structures, 35 students have taken both Data Structures and Computer Organization; 30 students have taken both Data Structures and Computer Organization, 15 students have taken all the three courses.How many students have not taken any of the three courses?
| 15 | |
| 20 | |
| 25 | |
| 35 |
Question 41 Explanation:
n = 200
PL = 125
DS = 85
CO = 65
PL & DS = 50
DS & CO = 35
CO & PL = 30
PL & DS & CO = 15
⇒ Not taken any course = 200 – (60 +15+15+35+15+15+20)
= 200 – 175
= 25
PL = 125
DS = 85
CO = 65
PL & DS = 50
DS & CO = 35
CO & PL = 30
PL & DS & CO = 15
⇒ Not taken any course = 200 – (60 +15+15+35+15+15+20)
= 200 – 175
= 25
Correct Answer: C
Question 41 Explanation:
n = 200
PL = 125
DS = 85
CO = 65
PL & DS = 50
DS & CO = 35
CO & PL = 30
PL & DS & CO = 15
⇒ Not taken any course = 200 – (60 +15+15+35+15+15+20)
= 200 – 175
= 25
PL = 125
DS = 85
CO = 65
PL & DS = 50
DS & CO = 35
CO & PL = 30
PL & DS & CO = 15
⇒ Not taken any course = 200 – (60 +15+15+35+15+15+20)
= 200 – 175
= 25
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