Question

Arooj swimming speed in still water is 18 km/h and speed of water is 6 km/h. How long will it take him to go downstream 72 km

Answer 1

Answer:

3hrs

Explanation:

speed in still water= 18

speed of stream= 6

speed of downstream= 18+6= 24km/hr

distance given=72

speed=distance/time

time=distance/speed

T= 72/24

T= 3hrs

Answer 2

$\huge\bold\pink{hey mate}$

Question;

Arooj swimming speed in still water is 18 km/h and speed of water is 6 km/h. How long will it take him to go downstream 72 km?

Answer:

➡Given swimmer speed in still water = x = 9km/hr.

Given swimmer speed in still water = x = 9km/hr.Rate of stream = y = 6km/hr.

Given swimmer speed in still water = x = 9km/hr.Rate of stream = y = 6km/hr.Therefore, speed downstream = x + y = 9 + 6 = 15km/hr.