Arithmetic Ability
Time and Work

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Q.

Two boys and a girl can do a work in 5 days, while a boy and 2 girls can do it in 6 days. If the boy is paid at the rate of 28$ a week, what should be the wages of the girl a week ?

View Answer

Correct choice: C

Explanation:

Let the 1 day work of a boy=b and a girl=g, then 2b + g = 1/5 ---(i) and b + 2g = 1/6 ---(ii) On solving (i) & (ii), b=7/90, g=2/45 As payment of work will be in proportion to capacity of work and a boy is paid $ 28/week, so a girl will be paid 28×2/45/7/90 = 16 $.
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