Question

9. If 14 men working 8 hours per day, can do a
piece of work in 15 days, how many hours
per day, 20 men may work in order to
complete the same work in 12 days?​

Answer 1

Step-by-step explanation:

14×8×15=1680

20×12=240

then. 1680 = 7

240

there 7 hours per day

hope it helps