Wipro Company Numerical Ability Boats and Streams

A man goes from city A to city B situated 60 kms apart by a boat. His onward journey was with the stream while the return journey was an upstream journey. It took him four and half hours to complete the round trip. If the speed of the stream is 10 km/hr, how long did it take him to complete the onward journey?

(1) 3 hours
(2) 3.5 hours
(3) 2.25 hours
(4) 1.5 hours

Read Solution (Total 2)

(60/(x-10))+(60/(x+10))=9/2
x=30=speed of boat
since onward journey is with stream, v= 30+10=40
time taken= 60/40 =1.5
8 years agoHelpfull: Yes(6) No(1)

3 hours 60/(v-10)+60(v+10)=9/2
v=30
60/20=3hrs
9 years agoHelpfull: Yes(0) No(4)

Wipro Other Question

A certain number of bullets were shared by 3 people equally.Each of them fired 4 bullets and the sum of the remaining bullets was equal to the initial share each had got.what was the initial number of bullets?

(a)20
(b)18
(c)16
(d)14 An express train traveling at 72 km/hr speed crosses a goods train traveling at 45 km/hr speed in the opposite direction in half a minute. Alternatively, if the express train were to overtake the goods train, how long will it take to accomplish the task. Assume that the trains continue to travel at the same respective speeds as mentioned in case 1.

(1) Cannot be determined
(2) 30 seconds
(3) 150 seconds
(4) 130 seconds