Question

If 50 workers can do a job in 20 hours , then how many workers working at the same rate will be required to do the same job in 8 hours

Answer 1

50 workers take 20 hours
1 worker take 20×50 hours
1 worker = 1000 hours
how many workers need to do that in 8 hours?
= 1000/8
=125 workers

Answer 2

x1=50 y1=20
x2=? y2=8
x1*y1=x2*y2
50*20=x2*8
x2=125 workers