Time and Work Practice Test 1 with solutions

Question : 16 of 40

Marks: +1, -0

Neeraj takes 2 days more to do a piece of work that can be done alone by his brother in 10 days. How long they will both take to do the same work together?

$5 5/{11}$ days
$4 3/{11}$ days
6 days
$6 2/3$ days
$7 1/{14}$ days

Validate

Solution:

Work done by Neeraj’s brother in one day =

1/{10}

Work done by Neeraj in one day =

1/{12}

Work done by both in one day =

1/{10}+1/{12}

{6+5}/{60}

{11}/{60}

So, time taken by both =

{60}/{11}

5 5/{11}

days

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