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Question

It was estimated that 52 men can complete a strip in a newly constructed highway connecting cities P and Q in 10 days. Due to an emergency, 12 men were sent to another project. How many number of days, more than the original estimate, will be required to complete the strip?

A

3 days
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B

5 days
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C

10 days
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D

13 days
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Solution

The correct option is A
3 days
52 men can do in 10 days

Since 12 men were sent out

Remaining men left = 52 - 12 = 40

We know M1D1=M2D2

52×10=40×x

x=52×1040=13 days

Total number of days taken=13 days

3 days more than the original estimate.

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