If 15 men take 21 days of 8 hours each to do a piece of work, then what is the number of days of 6 hours each that 21 women would take, if 3 women would do as much work as 2 men?

  1. 18
  2. 20
  3. 25
  4. 30

Answer

Total Work Done = Number of men or women × days × hours × efficiency

15 × 21 × 8 × 1/2 = 21 × days × 6 × 1/3

days = 30

The correct option is D.

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