Question

if 10 workers,working for 4 hours complete the work in 12 days, in how many days will 8 workers working for 6 hours complete the same work?

Answer 1

10 workers complete the work in 12*4=48 hr
So, 1 worker would take 48*10=480 hr to do the work
Hence, he does 1/480 work in 1hr
so 8 workers at 6 hr a day will take 8 * 1/480 * 6= 10 days to complete the work

Answer 2

40 hours-12 days
48 hours-  x days
40/48=12/x
x=12*48/40
x= 14.4 days