A man can row 8 km in 1 h in still water . If the speed of the water current is 2kmph and it takes 3 hours for him to go from a point p to q and return to p then find the distance PQ
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A man can row 8 km in 1 h in still water . If the speed of the water current is 2kmph and it takes 3 hours for him to go from a point p to q and return to p then find the distance PQ
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Answer:
Step-by-step explanation:
Speed of the man in still water =8 kmph.
Speed of the river =2 kmph
Downstream =8+2=10 kmph
Upstream =8−2=6 kmph ⇒ 10
x + 6 x = 60
48 ⇒8x=24 ⇒x=3 km