There are 60 students in a classes, out of which 40 opt for NCC, 30 opt for NSS and 20 for both, then the probability that a student has opted for none of the NCC or NSS is (A) `5/6` (B) `1/6` (C) `1/3` (D) `1/2`

What is the number of students who opted for dancing ?

If there are 50 students in a class out of which 35 are boys.if only 60% of students passes in an exmination then find the probability that a student selected at random will be a girl who has passed the exam.

In a class of 60 students, 40 opted for NCC, 30 opted for NSS and 20 opted for both NCC and NSS. If one of these students is selected at random, then the probability that the student selected has opted neither for NCC nor for NSS is

In a class of 60 students 30 opted for NCC, 32 opted for NSS and 24 opted for both NCC and NS. If one of these students is selected at random, find the probability that: i. The student opted for NCC or NSS ii. The student has opted NSS or NCC.

Find the central angle of total number of students who opted for History ?

How many students have opted for cricket and painting together ?

There are 60 boys and 40 girls in a class.A student is selected at random.Find the probability that student is a girl.

In a class of 60 students,30 opted for NCC,32 opted for NSS and 24 opted for both NCC and NSS.If one of these students is selected at random,find the probability that (i) The student opted for NCC or NSS.(ii) The student has opted neither NCC nor NSS.(ii) The student has opted NSS but not NCC.