Question

15 men can build a wall in 42 hours,how many workers will be required for the same work in 30 hours​

Answer 1

Answer:

GIVEN :- 15 workers can build a wall in 42 hrs

let 'x' be the no. of men who can complete the same work in 30 hrs

=> 15 ×42 = 30 × x

=> divide both sides by 30

=> i, e 15×42÷30 = x

=> by simplifying we get

=> x= 8× 3 = 24

•°• the no. of workers needed to complete the same job in 30 hrs = 24 workers

hope its helpful to you

Answer 2

Answer:

HERE'S YOUR ANSWER.

Step-by-step explanation:

there is a formula for this.

Old no of workers x days = new no of workers x days

15 x 42 = new no of workers x 30

630 = new no of workers x 30

new no of workers = 630/30 = 21

Hence 21 men are needed to complete the same work in 30 hours.

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