Mathematics, 17.10.2020 23:01, ddlc28

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 ? A) 23
B) 31
C) 27
D) 28

Answers: 3

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In a row of boys, If A who is 10th from the left and B who is 9th from the right interchange their p...