Symbiosis National Aptitude Test SNAP 2014 Paper

Question : 16 of 150

Marks: +1, -0

A can do a piece of work in 25 days and B in 20 days. They work together for 5 days and then A goes away. In how many days will B finish the remaining work ?

17 days
11 days
10 days
15 days

Validate

Solution:

(A + B)’s 5 days’ work
=

5(1/{24}+1/{20})

{45}/{100}

9/{20}

Remaining work =

(1-9/20)

{11}/{20}

{11}/{20}

of the work would be finished by B in

{{11}/{20}}/{1/{20}}

= 11 days.

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