RRB NTPC · Question 62
In a class of 25 students of Mathematics and Computer Science, 12 students have taken Mathematics. Out of this, 8 have taken Mathematics but not Computer Science. What is the number of students who have taken both Mathematics and Computer Science?
Show answer & explanation
Answer: (A) 4
Explanation
12 took Mathematics and 8 of them did not take Computer Science, so 12 − 8 = 4 took both.