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Question : 10 men can do work in 25 days. After 12 days of work, 3 more men were engaged to finish the work. The number of days required to complete the remaining work is:

Option 1: 10

Option 2: 8

Option 3: 6

Option 4: 12


Team Careers360 14th Jan, 2024
Answer (1)
Team Careers360 20th Jan, 2024

Correct Answer: 10


Solution : Given: 10 men can do a work in 25 days. After 12 days of work, 3 more men were engaged to finish the work.
Here, $M_1=10,M_2=10+3=13,D_1=25-12=13$
We know, $M_1D_1= M_2D_2$
⇒ 10 × 13 = 13 × D 2
$\therefore$ D 2 = 10 days
Hence, the correct answer is 10.

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