Question

If 12 workers can do piece of work in 20 days how many workers should be added to complete the work in 16 days​

Answer 1

Explanation:

Indirect proportion. If no. of workers increased, the working days will be decreased.

No: workers to complete in 16 days = 20 * 12 /16 = 5 * 3 = 15 workers

3 more workers should be added to complete the work in 16 days​