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20 persons completed 1/3rd of the work in 12 days. How many more person are required to finish the rest work in next 12 days?

20
12
18
40

Correct Answer: 20

Explanation:

Work done = 1/3
Remaining work = 2/3
So for double work in same days we need double number of people i.e. 40.
So, 20 men will be increased.

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