Q:
In a row of boys, If A who is 10th from the left and B who is 9th from the right interchange their positions, A becomes 15th from the left. How many boys are there in the row ?
Answer & Explanation
Answer: A) 23
Explanation: Clearly, A’s new position is 15th from the left. But this is the same as B’s earlier position which is 9th from the right.
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