1.

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 left. How many boys are there in the row ?1. 232. 313. 284. 27

Answer» Correct Answer - Option 1 : 23

Calculation:

Position of A from left = 10th

Position of B from right = 9th

After interchanging positions, Position of A from left = 15th

Total number of students in the row = (15 + 9)1

⇒ 241

⇒ 23

∴ Boys in the row is 23



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