Question

d. 3 km 23) A boats man can row in still water at speed of 7 km/hr. It takes 6 hours more to travel the same distance in upstream than in downstream if the speed of the river is 3 km/hr. what is the distance between the two destinations? a. 20 km b. 40 km c. 30 km d. 10 km​

Answer 1

Answer:

40km

Step-by-step explanation:

x = 7 km/hr ; y = 3 km/hr

Ds = 10 km/hr ; Us = 4 km/hr

Distance (d) is same. Therefore, if time taken for downstream is t hours, the time for upstream is (t + 6) hours.

10*t = 4*(t + 6)

6t = 24 ; t = 4 hours

d = 10*4 = 40 km