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garik1379 [7]
3 years ago
11

If 10 men can complete a piece of work in 30 days how many men are requiredto complete the same job in 25 days?

Mathematics
1 answer:
77julia77 [94]3 years ago
3 0
We must assume that all workmen work at the same rate, and keep it up forever.

More men ==> fewer days

so the proportion is:    30/25 = x/10

Cross-multiply the proportion:

300 = 25 x

Divide each side by 25 :

x = 300/25 = <u>12 men</u>
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