Question

Q. 12. A motor boat covers a distance
between two cities situated on the bank of a
river, with the flow of water in 5 hours. Against
the flow of water the same distance is covered
by the boat in 6 hours. If the speed of flow of
water is 2km/hr, then find the speed of boat in
still water.​

Answer 1

Answer:

120 km

Step-by-step explanation:

d=(u+2)5

d=(u-2)6

(u+2)5=(u-2)6

5u+10=6u-12

u=22

d=(22+2)5=120km