Time and Work Practice Test 5 with solutions

Question : 7 of 30

Marks: +1, -0

Alok, Abhay and Arvind can do a piece of work in 24, 8 and 12 days respectively. They started working alternatively starting with Alok, then Abhay and so on. Find the time taken by them to complete the work.

10 days
14 days
12 days
16 days
15 days

Validate

Solution:

Work done by Alok, Abhay and Arvind in the first 3 days =

1/{24}+18+1/{12}

{1+3+2}/{24}

1/4

So, work done by all of them in 12 days
=

1/4 × 4

= 1
So, work can be completed in 12 days.

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