Question discussion

12 men can finish a piece of work in 15 days. How many men are needed to finish it in 9 days?

2252Medium DSSSB TGT Computer Science 0 replies 1 views
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12 men can finish a piece of work in 15 days. How many men are needed to finish it in 9 days?

  • A18
  • B20
  • C24
  • D25
Correct answer: B

Explanation

The work is 12 × 15 = 180 man-days, so 180 / 9 = 20 men are needed.

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