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Multiple Choice Questions

9 children can complete a piece of work in 200 days 18 men can complete the same work in 150 days nb...........

Quantitative Aptitude (CHSL) Time and work

9 children can complete a piece of work in 200 days. 18 men can complete the same work in 150 days and 12 women can complete the work in 180 days . In how many days can 10 children , 3 men and 12 women together complete the work?

85(1/2) days

80(1/2) days

81(1/3) days

81(9/11) days

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Explanation:

Solution:
9* 200 children = 18 * 150 men = 12 * 180 women
=>1800 children = 2700 men = 2160 women
=> 10 children = 15 men = 12 women
Now, 10 children + 3 men + 12 women
= 10 children + 2 children + 10 children = 22 children
=> 22 children can complete the work in = (200*9)/22 = 81(9/11) days

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