Harry can swim from point \(A\) to point \(B\) (with the current) in \(40min\) and from \(B\) to \(A\) ( against the current) in \(45min\).

how long does it take him to row from \(A\) to \(B\) if he row from \(B\) to \(A\) in \(15min\)?

if the answer is for example \(12min\) and \(21seconds\) write it as \(1221\)

(Assume that the speed of the current and Harry’s swimming and rowing speeds relative to the current are all constant.)

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