Question

A boy has 3 library tickets and 8 books of his interest in the library including mathematics part-I and mathematics part-II. Of these 8, he does not want to borrow mathematics part II, unless mathematics part I is also borrowed. Then number of ways of borrowing the three books are.
1. 42
2. 52
3. 41
4. 36

Answer 1

Correct Answer - Option 3 : 41

Their are Maths-I, Maths-II and 6 other books

If Maths-II is selected, Maths-I also selected. So number of ways = ⁶C₁

If Maths-II not selected then number of ways = ⁷C₃

⁶C₁ + ⁷C₃ = 6 + 35 = 41