Question

six worker can plaster the exterior of a building in 5 hour if the job is to be completed in only 3 hours 45 minutes how many worker will be needed​

Answer 1

Answer:

workers = 8

Step-by-step explanation:

6 workers take 5hrs to finish a wall plaster.

work done by them in 1hr = 1/5 = 1/300 converting to mins

now n workers take 3hr45min ro complete the same wall plaster. Converting above time in hrs:

3 + 45/60 = 3.75hrs.

Work done in 1hr = 1/3.75 = 225mins

6 = 1/300

n = 1/225

n = 6x300/225 = 8