a streamer going downstream in a river covers the distance between two towns in 20 hrs . Coming back upstream it covers this distance in 25 hrs the speed of water is 4km/h . find the distance between the two towns
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upstream D=25(S-W)
downstream D=20(s+w)
5 S = 45 W
S/W =9/1
given W = 4 ==>S = 36 KMPH
total distance = 40 *20
800km
downstream D=20(s+w)
5 S = 45 W
S/W =9/1
given W = 4 ==>S = 36 KMPH
total distance = 40 *20
800km
mj1818:
what's w in here mean?
water speed
by the way thanks a lot for the answer
thanks
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