Question

The speed of a boat in still water is 14 km/h. If it travels 90 km upstream in 15/2 hours.Find the speed of stream. ​

Answer 1

Huiiii

Your answer is

Let speed be x km/hr

Speed downstream 14-x

Speed upstream 14+x

Time upstream 90/14+x

Time downstream 90/14-x

ATQ

90/14-x + 90/14+x = 15/2

X = 25.1992063 Approx (25)

Hope it will help you