Question

plse solve this sum

Answer 1

3. since question 1 and 2 are compulsory, then the student have to choose two question out of the remaining three.

Answer 2

so you have 5 questions, #1 #2 #3 #4 #5. and you have to pick 4 of them. now given that #1 and #2 is certainly gonna be your picks. then you only have two questions left to pick which are from #3 #4 #5. how many ways can you pick two questions out of three? another way of thinking is how many ways can you pick the one that you are NOT gonna choose? draw a diagram on paper, you will get it..

Answer 3

He can pick 3 and 4 or 3 and 5 or 4 and 5
So 3 ways