In a row of 40 boys, A is 10th from the left, and B is 15th from the right. How many boys are between A and B?
Q1. In a row of 40 boys, A is 10th from the left, and B is 15th from the right. How many boys are between A and B?
Answer: 17
Explanation: A is 10th from left, B is 15th from right, so B is (40 - 15 + 1) = 26th from left. Between A (10th) and B (26th), there are 15 boys (26 - 10 - 1).