25
3 men or 4 women can complete a job in 120 days. 12 men and 16 women will complete the same job in how many days?
- A12
- B14
- C15
- D18
Answer not set
Discussion 1
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CCommunity
Given: 3 men or 4 women completes a work in 120 days
⇒ Time taken by 12 men to complete the work = (120/12) × 3 = 30 days
⇒ Time taken by 16 women to complete the work = (120/16) × 4 = 30 days
⇒ Time taken by 12 men and 16 women to complete the work = 1/[(1/30) + (1/30)]
⇒ Time taken by 12 men and 16 women to complete the work = 15 days
∴ the correct option is 3)
⇒ Time taken by 12 men to complete the work = (120/12) × 3 = 30 days
⇒ Time taken by 16 women to complete the work = (120/16) × 4 = 30 days
⇒ Time taken by 12 men and 16 women to complete the work = 1/[(1/30) + (1/30)]
⇒ Time taken by 12 men and 16 women to complete the work = 15 days
∴ the correct option is 3)