Time and Work Practice Test 5 with solutions

Question : 11 of 30

Marks: +1, -0

12 men complete a work in 9 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete the remaining work?

5 days
4 days
3 days
2 days

Validate

Solution:

12 men's 6 days' work =

6/9

2/3

Remaining part of work = 1 –

2/3

1/3

, which will be done by 18 men.
18 men's 1 day's work =

{18}/{9×12}

1/6

Hence, required number of days =

{1/3}/{1/6}

= 2 days.

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