Question

A contractor employed 210 men to build a house in 60 days. After 12 days, he was joined by
70 more men. In how many days will the remaining work be finished?
Hint. 210 men can complete the remaining work in 48 days. Find in how many days 280 men can do it by unitary method​

Answer 1

Answer:

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Step-by-step explanation:

No. of men for which the provision will last for 25 days = 360

No. of men for which the provision will last for 1 day = 360 ×25

Now, no. of men for which the provision will last for 30 days = 360×2530 = 300

∴ 60 men, i.e., (360 − 300), must be transferred to another camp so that the provision lasts for 30 days.