Question

Find the total distance covered by boat in each upstream and downstream in 7 hours if the speed of boat in still water and speed of current is 21 km/h and 3 km/h respectively?​

Answer 1

Answer:

126km for upstream

168km for downstream

Step-by-step explanation:

You can use the conct of relative motion

For upstream

21-3=18km/h

Distance=18*7=126km

same for downstream