In a row of boys, A is 15th from the left and B is 9th from the right. If they interchange their positions, A becomes 18th from the left. How many boys are there in the row? MCQ with Answer and Explanation
In a row of boys, A is 15th from the left and B is 9th from the right. If they interchange their positions, A becomes 18th from the left. How many boys are there in the row?
A. 24
B. 25
C. 27
D. 26
Answer: Option D
Solution (By JKSSB Mock Tests)
After interchange A is at B's original position and is 18th from left. Originally B was 9th from right. Total = 18 + 9 - 1 = 26.
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