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10 Men Can Complete A Work In 7 Days. But 10 Women Need 14 Days To Complete The Same Work. How Many Days Will 5 Men And 10 Women Need To Complete The Work ? |
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Answer» Work done by 10 MEN in 1 day = 1/7 Work done by 1 MAN in 1 day = (1/7)/10 = 1/70 Work done by 10 women in 1 day = 1/14 Work done by 1 woman in 1 day = 1/140 Work done by 5 men and 10 women in 1 day = 5 × (1/70) + 10 × (1/140) = 5/70 + 10/140 = 1/7 => 5 men and 10 women can COMPLETE the work in 7 days Work done by 10 men in 1 day = 1/7 Work done by 1 man in 1 day = (1/7)/10 = 1/70 Work done by 10 women in 1 day = 1/14 Work done by 1 woman in 1 day = 1/140 Work done by 5 men and 10 women in 1 day = 5 × (1/70) + 10 × (1/140) = 5/70 + 10/140 = 1/7 => 5 men and 10 women can complete the work in 7 days |
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