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10 women can do a piece of work in 6 days, 6 men can do same work in 5 days and 8 children can do it in 10 days. What is the ratio of the efficiency of a woman, a man and a child respectively?1). 4 : 6 : 32). 4 : 5 : 33). 2 : 4 : 34). 4 : 8 : 3 |
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Answer» Work done by 1 WOMEN in 1 day is 1/10 × 1/6 = 1/60 Work done by 1 men in 1 day is 1/6 × 1/5 = 1/30 Work done by 1 CHILDREN in 1 day is 1/8 × 1/10 = 1/80 ⇒ RATIO of their efficiencies is 1/60 : 1/30 : 1/80 ∴ their efficiencies are in RATION 4 : 8 : 3 |
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