Latest Book Aptitude Question SOLUTION: A man covered a certain distance at some speed. If he had moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes mo

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(#M40021379) BOOK question Keep an EYE

A man covered a certain distance at some speed. If he had moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes more. What is the the distance in km?

Asked In Book Abhishek (10 years ago)

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Ashutosh Anshu  (10 years ago)

suppose distance = d and normal distance = x
now a/c if he had moved 3 kmph faster, he wud hv taken 40 min less. so
(d/x)-(d/x+3) = 40/60 ---- (1)
and if he had moved 2 kmph slower, he wud hv takeen 40 minutes more. so
(d/x-2)-(d/x) = 40/60 ..... (2)
solving both equation we get d =40. so distance = 40 km.

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