Question

Solve the following problems:

10 workers can complete a job in 24 days. How many days less will 12 workers take to complete the same job?

Answer 1

Let 12 workers take x days to complete the given job.

Ratio of number of days = 24 : x

Ratio of number of workers = 10 : 12

The quantities involved in the situation are in inverse proportion.

∴ 24 : x = 12 : 10

In 20 days, 12 workers will complete the given job, which is 4 days less than that was taken by 10 workers.