Question

A student has to answer 10 questions, choosing atleast 4 from each of
Parts A and B. If there are 6 questions in Part A and 7 in Part B, in how many ways can the student choose 10 questions?

Answer 1

@DLS

Answer 2

Part A has 6 questions
Part B has 7 questions
tighten your belt and lets do it
we need the sum to be 10..
6C6 x 7C4
6C5 x 7C5
6C4 x 7C6
6C3 x 7C7 (Discarded case,since atleast 4 have to be attempted from both the parts)
now add the 1st three ones.

Answer 3

@DLS MAHARAJ KI JAI. :p
ab tereko kya krna hai tujhe pta hai. :P

Answer 4

nvm.

Answer 5

ha :P