Latest Book Aptitude Question SOLUTION: A work has been done by 2 persons in 24min.one of them can do this work a lonely in 40min.how much time required to do the same work for the 2nd person?

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(#M40020117) BOOK Numerical Ability question Keep an EYE

A work has been done by 2 persons in 24min.one of them can do this work a lonely in 40min.how much time required to do the same work for the 2nd person?

Asked In Book Gokul Krishnan (11 years ago)

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Sagar pujari  (9 years ago)

sriram krishnamoorthi
Mar 30th, 2006

let A does the work in 40 mins (given)
let B does the work in x mins
amt of work done by A in 1 min = 1/40
amt of work done by B in 1 min = 1/x
amt of work done jointly by both A & B = 1/24
which implies (1/40)+(1/x) = (1/24)
on solvin the above eqn. for x we get
x = 60

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