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A man goes upstream for 10 km in 5 hour .another man goes downstream for 10 km in 3 hour .if speed of stream is 15 km/h what is the difference in speed of both men.
Read Solution (Total 6)
-
- speed in upstream = 10/5 = 2 kmph
speed in downstream = 10/3 kmph
upstream = 15-2 = 13 kmph
downstream = 15+10/3 = 18.33 kmph
18.33-13.00= 5.33
- 11 years agoHelpfull: Yes(15) No(6)
- speed in upstrem=10/5=2km/hr speed in downstream=10/3
in upstream =15-2=13km/hr in downstream=15+10/3=18.33
18.33-13.00= 4.67 ans
- 11 years agoHelpfull: Yes(9) No(12)
- Upsteam
D= T*S
10=3*(B-15)
=>B=17
Similarly Downstream
10=3*(B+15)
B=11.66
Diff in speed= 17-11.66= 5.34 - 11 years agoHelpfull: Yes(6) No(1)
- 28.6
(x+15)3=10
x=-11.6
(y-15)5=10
y=17
x-y=28.6 - 11 years agoHelpfull: Yes(5) No(3)
- the question is wrong. when the speed of the stream downstream is 15 km per hour, how does the person take 3 hours to cover 10 km? he will cover 15 x 3 + his speed for 3 hours distance. so the data is wrong
- 7 years agoHelpfull: Yes(4) No(0)
- in case of upstream,
speed of man=x
x-15=10/5
x=17
in case of downstream,
speed of man=y
y+15=10/3
y=55/3
diffrence of speed=y-x
55/3-17=1.3333 - 9 years agoHelpfull: Yes(2) No(1)
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