Directions(Q.16 to Q.25 ):

A boat travels110 km downstream and come back upstream in total 32 hours, if speed of stream is 62.5% less than speed of boat in still water then find the speed of stream?

Let speed of boat in still water and speed of current be 8x km/hr and

3x km/hr respectively

ATQ –

$frac{{110}}{{8x + 3x}} + frac{{110}}{{8x - 3x}} = 32$

32????=32 ⇒ x = 1 km/h

Speed of stream = 3×1= 3 km/hr