Question

In an examination, 70% students passed in Physics, 80% students passed in Chemistry, 75% students passed in Mathematics and 85% students passed in Biology, and x% students failed in all the four subjects. What is the minimum value of x ?
A. 10
B. 12
C. 15
D. None of the above

Answer 1

Correct Answer - D
Here, maximum number of students failed in all the four subjects = 15%
But, minimum number of students failed in all the four subjects varies from 0 to 15%. So, correct option is (d).