28 men can complete a piece of work in 15 days and 15 women can compelte the same piece of work in 24 days. what is the respective ratio between the amount of work done by 30 men in 1 day and the amount of work done by 18 women in 1 day?
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28 men do 1 work in 15 days.
∴∴ Time taken by 30 men
= 15×28
----------
30
= 14 days
∵∵ 15 women do the work in 24 days.
∴∴ Time taken by 18 women
= 15×24
-------------
28
= 20 days
∴∴ Required ratio
1/14 : 1/20
= 20 : 14 = 10 : 7
∴∴ Time taken by 30 men
= 15×28
----------
30
= 14 days
∵∵ 15 women do the work in 24 days.
∴∴ Time taken by 18 women
= 15×24
-------------
28
= 20 days
∴∴ Required ratio
1/14 : 1/20
= 20 : 14 = 10 : 7
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