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UPPSC Prelims 2020CSATQ. 92 of 221
Q. 921 markMedium
UPPSC Prelims 2020·CSAT
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)24
(b)31
(c)23
(d)28