40 men can complete a piece of work in 15 days. 20 more men joined them after 5

Question

40 men can complete a piece of work in 15 days. 20 more men joined them after 5 days they start doing work. How many days will be required by them to finish the remaining work ?

Options:

A . $${\text{7}}\frac{2}{3}{\text{ days}}$$

B . $${\text{6}}\frac{1}{5}{\text{ days}}$$

C . $${\text{8}}\frac{1}{4}{\text{ days}}$$

D . $${\text{6}}\frac{2}{3}{\text{ days}}$$

Answer: Option D

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