Time and Work Practice Test 4 with solutions

Question : 23 of 40

Marks: +1, -0

Find the time taken by Ravi to do a certain work, which his sister can do in

2 5/6

days and together they can do it in 2 days

Solution:

Work done by both in one day =

1/2

Work done by Ravi’s sister in one day =

6/{17}

So, work done by Ravi in one day =

1/2 - 6/{17}

{17-12}/{34}

5/{34}

So, Ravi will complete the work in

{34}/5

days =

6 4/5

days

Go to Question:

Prev Question

Next Question