If 3 men or 4 women can reap a field in 43 days, then the number of da

1.	If 3 men or 4 women can reap a field in 43 days, then the number of days in which the field can be reaped by 7 men and 5 women is:1. 122. 103. 154. 14
Answer» Correct Answer - Option 1 : 12 Given: 3 Men can reap field in 43 days 4 women can reap field in 43 days Concept used: Work done = time × efficiency Calculation: Let the efficiency of one man be 'm' and one women be 'w'. Work done = 3 × m × 43 = 4 × w × 43 ⇒ Ratio of efficiency of man to women, m ∶ w = 4 ∶ 3 Let the efficiency of man and women to be 4x and 3x respectively. Number of days by which 7 men and 5 women can finish work = (3 × 4 × 43)/(7 × 4 + 5 × 3) = 12 days. ∴ The number of days required by 7 men and 5 women to finish work is 12 days.

If 3 men or 4 women can reap a field in 43 days, then the number of days in which the field can be reaped by 7 men and 5 women is:1. 122. 103. 154. 14

Answer» Correct Answer - Option 1 : 12

Given:

3 Men can reap field in 43 days

4 women can reap field in 43 days

Concept used:

Work done = time × efficiency

Calculation:

Let the efficiency of one man be 'm' and one women be 'w'.

Work done = 3 × m × 43 = 4 × w × 43

⇒ Ratio of efficiency of man to women, m ∶ w = 4 ∶ 3

Let the efficiency of man and women to be 4x and 3x respectively.

Number of days by which 7 men and 5 women can finish work = (3 × 4 × 43)/(7 × 4 + 5 × 3) = 12 days.

∴ The number of days required by 7 men and 5 women to finish work is 12 days.

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