Question:
15 men can build a wall in 8 days. How many days will 10 men take to build the same wall?
15 men can build a wall in 8 days. How many days will 10 men take to build the same wall?
Updated On: Aug 8, 2026
- 12 days
- 10 days
- 16 days
- 6 days
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The Correct Option is A
Solution and Explanation
Step 1: Total work \(= 15\times8 = 120\) man-days.
Step 2: With 10 men: days \(= \dfrac{120}{10} = 12\).
Step 2: With 10 men: days \(= \dfrac{120}{10} = 12\).
Quick Tip: Men and days are inversely proportional; the product (man-days) is constant.
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