Question

A man crosses a river in a boat. If he crosses the river in minimum time he takes 10 minutes with a drift 120 m. If he crosses the river  taking shortest path, he takes 12.5 minute. (Assume Vb/r > Vr)A man crosses a river in a boat. If he crosses the river in minimum time he takes 10 minutes with a drift 120 m. If he crosses the river  taking shortest path, he takes 12.5 minute. (Assume Vb/r > Vr)A man crosses a river in a boat. If he crosses the river in minimum time he takes 10 minutes with a drift 120 m. If he crosses the river  taking shortest path, he takes 12.5 minute. (Assume Vb/r > Vr)

Answer 1

Answer:

he takes 89 min to cross this