Question
5 girls can do a piece of work in 9 days, 4 boys can do
the same piece of work in 8 days, 6 men do the same piece of work in 2 days and 4 women can do the same piece of work in 4 days. Who is least efficient?Solution
5 girls can do a piece of work = 9 days 1 girl can do a piece of work = 9 × 5 = 45 days. 4 boys can do a piece of work = 8 days 1 boy can do a piece of work = 4 × 8 = 32 days. 6 men can do a piece of work = 2 days 1 men can do a piece of work = 6 × 2 = 12 days. 4 women can do a piece of work = 4 days 1 woman can do a piece of work = 4 × 4 = 16 days. Hence, girls are least efficient.
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