Question

fifteen workers take 4 hrs to build a wall , How many hrs will 12 workers need to build same wall​

Answer 1

Answer:

5hours

Step-by-step explanation:

1) 15 workers takes 4 hour for buils wall

2) one on

worker takes 15 * 4 hours= 60 h

3) then 12 worker takes 60 upon 12 h

= 5 hours

hope the answer is correct