Question

28 children can do a piece of work in 50 days.How many children are needed to complete the work in 30 days?

Answer 1

28 children can do a piece of work in 50 days

⇒ 50 days = 28 children

The number of days is inversely proportional to the number of children.

⇒ The more days we have, the fewer children we need

Find number of children needed to complete the work in 1 day:

50 days = 28 children

1 day = 28 x 50 = 1400 children

Find number of children needed to complete the work in 30 day:

1 day = 1400 children

30 days = 1400 ÷ 30 = 46.67 ≈ 47 complete days

Answer: 30 children will need 47 days to complete the work.

Answer 2

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