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Maths Puzzle
Numerical Ability
if a boat goes downstream at 72 miles in three hours, and upstream 60 miles in 6 hours, the rate of the river and the rate of the boat in still water respectively are_____________?
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- Downstream speed-72/3=24m/hr,,
Upstream speed- 60/6=10m/hr
rate of boat= D+U/2
=24+10/2 = 17m/h
rate of river= D-U/2= 24-10/2 = 7m/h... - 9 years agoHelpfull: Yes(0) No(0)
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