A boat travels from X to Z and from Z to X in total 2 hours 24 minutes . Speed of the boat in still water is 8 kmph and speed of the current is 2 kmph . What is the distance between X to Z?
shravanvannela12:
Sir I was already mentioned the speed of the current is 2 kmph and total time 2 hours 24 minutes
Please explain it clearly
Answers
Answered by
1
Hey there
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Correct Answer:
C) 12 km/h
Description for Correct answer
Let the speed of the current = x km/hr
Speed of the Boat B in still water = 10 km/hr
Speed of the Boat B in downstream = x+10
Speed of the Boat A in still wateer = x+10
Speed of the Boat A in dfownstream = x+10-x = 10 km/hr
According to question,
4010−2410+x=24010−2410+x=2
4−2410+x=24−2410+x=2
10+x=12
x=2
Speed of Boat A in still water = 10+2 = 12 km/hr
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Hope this helps you
____________________________
Correct Answer:
C) 12 km/h
Description for Correct answer
Let the speed of the current = x km/hr
Speed of the Boat B in still water = 10 km/hr
Speed of the Boat B in downstream = x+10
Speed of the Boat A in still wateer = x+10
Speed of the Boat A in dfownstream = x+10-x = 10 km/hr
According to question,
4010−2410+x=24010−2410+x=2
4−2410+x=24−2410+x=2
10+x=12
x=2
Speed of Boat A in still water = 10+2 = 12 km/hr
____________
Hope this helps you
Sir I was already given the speed of the current 2 kmph
Total time is 2 hours 24 minutes
Answered by
2
time =12/5hrs
s=d/t
let distance xto z be a
downstream speed 10
upstream speed 6
average speed = 2*10*6/(10+6) =7.5
total distance = speed *time
2a= 12/5(15/2)
2a=18
a=9=distance zto x
s=d/t
let distance xto z be a
downstream speed 10
upstream speed 6
average speed = 2*10*6/(10+6) =7.5
total distance = speed *time
2a= 12/5(15/2)
2a=18
a=9=distance zto x
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