Question

If 12 workers can build a wall in 50 hours, how many workers will be required to do the same work in 40 hours ​

Answer 1

Answer:

15

Step-by-step explanation:

workers. hours

12. 50

x. 40

12 × 50 = x × 40

40 is go to another side it's change into division

12 × 50 ÷ 40 = x

600 ÷ 40 = x

15 = x

Answer 2

Given:

12 workers can build a wall in 50 hours.

To find:

The number of workers required to do the same work in 40 hours.

Solution:

First of all, we should know that as the number of workers increases, the time required to finish the same work decreases.

So, as given, we have,

The time that is taken by 12 workers to build a wall = 50hours

So,

The time taken by one worker to build the same wall is

$= 12 \times 50 \: hours$

So,

To build the same wall in 40 hours, the number of workers required is

$= \frac{12 \times 50}{40}$

$= 15 \: workers$

Hence, the number of workers required to complete the same work in 40 hours is 15.