If 15 men can build a wall in 20 days, how many men are required to build the same wall in 12 days?

Topic: Work and Time
Subtopic: Inverse Proportion

A20

B25

C30

D35

Explanation

Using the inverse proportion formula M1 * D1 = M2 * D2: 15 * 20 = M2 * 12. Solving for M2 gives 300 / 12 = 25 men.

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