Question

if 15 workers can build a wall in 48 hours then how many workers are required to complete the same wirk in 30 hours

Answer 1

15 workers take 48 hours

⇒ 48 hours = 15 workers

The number of hours is inversely proportional to the number of workers

⇒ The more workers → The fewer hours needed

Find the number of workers needed for 1 hour:

48 hours = 15 workers

1 hour = 15 x 48

1 hour = 720 workers

Find the number of workers needed for 30 hour:

1 hour = 720 workers

30 hours = 720 ÷ 30

30 hours = 24 workers

Answer: It takes 24 workers to complete the work in 30 hours

Answer 2

Nice question ☻ !!

Given that ""

15 workers can build a wall in = 48 hours.

So ""

The number of workers required to complete the work in hour =

⇒ ( 15 × 48 )

⇒ ( 720 ) workers / hour

To find "" ❔

The number of workers required to complete the same work in 30 hours ?

According to question ,,

720 workers build a wall in 1 hour.

Then ""

The workers required to complete the same work in = 30 hours

⇒ 720 / 30

⇒ 24 workers

Hence , 24 workers required to complete the work in 30 hours.

Thanks !! ☻