CDS Government Jobs Exams

If 2 men do as much work as 5 women, and 6 women as much as 10 boys divide a week's wages of Rs 5700 among 8 men, 9 women and 15 boys.

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Ratio of work done of man:woman : boy are 1/12: 1/30:1/50
Then Ratio of wages of man:woman : boy are 25:10:6
Ratio of wages of 8 men, 9 women and 15 boys will be 200:90:90

wages for 8 men = 5700*200/380 = Rs 3000
wages for 9 women = 5700*90/380 = Rs 1350
wages for 15 boys = 5700*90/380 = Rs 1350
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CDS Other Question

A & B alone can do a piece of work in 12 and 16 days respectively. They work for 8days alternately and remaining work is done by C in 5 days.
In how many days C alone can do the work. One litre of sprite which contain 10% of water is added to 3 litres of sprite which contain 7% of water and to this mixture half a litre of water is added. Find the percentage of water in the final mixture.