Question

A student is to answer 9 out of 12 questions in an examination such that he must choose at least 5 from the first six questions. The number of choices available to him is

Answer 1

1,2,3,4,5,7,8,9,10

This is because we have to choose any 5 from the first six and the rest can be any between 6 and 12.

Hope it helps!