Question

12 people can build the wall in 20 hours. How many people will be required to build
the same wall in 15 hours?​

Answer 1

Answer:

21 workers

Step-by-step explanation:

Hope it will help you Mark

Answer 2

In 20 hours a wall can be built by 12 people.

So, in 1 hour a wall can be built by 12×20 people.

So, in 15 hours a wall can be built by 12×20/15 = 16 people (Ans)