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Question
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 ?
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Solution
The correct option is A 23
Clearly, As new position is 15th from the left. But this is the same as Bs earlier position which is 9th from the right.
Clearly, As new position is 15th from the left. But this is the same as Bs earlier position which is 9th from the right.
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