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 11 men and 8 women can earn Rs. 16120 in 13 days. 9 men and 15 women can earn Rs. 11160 in 8 days. In how many days can 16 men and 12 women earn Rs. 10920 ?

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 11 men and 8 women can earn Rs. 16120 in 13 days. 9 men and 15 women can earn Rs. 11160 in 8 days. In how many days can 16 men and 12 women earn Rs. 10920 ?

A). 6 days

B). 7 days

C). 8 days

D). 9 days


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1 answers

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Answered by on | Votes 0 |

6 days



Let the daily earning of men and woman be x and y respectively.
∴ 11x + 8y = 16120/13 = 1240 ..........(1)
9x + 15y = 11160/8 = 1395 ............(2)
Solving eqn (1) and (2)x = 80, y = 45
∴ 16x + 12y = 1820
∴ Number of days = 10920/1820 = 6

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