Question

16. A boatman rows downstream a distance of 30 km in 6 hours and upstream a
distance of 24 km in 6 hours. The ratio of speed of boat in still water and speed
of current is
1) 9 : 1 2) 8 : 1 3) 9 : 2
4) 8 : 3 5) None of

Answer 1

answer is none of this i think so

Answer 2

Answer: Speed of the boat in still water= x km/hr

Speed of the current= y km/hr

• 30/(x+y)=6

x+y=5 ____(1)

• 24/(x-y)=6

x-y=4 ____(2)

From (1) and (2)

x=9/2

y=1/2

Ratio x:y=9:1