Question

A factory requires 84 machines to produce a given number of articles in 32 days. How many machines would be required to produce the same number of articles in 21 days?

Answer 1

Days machines

84

32

24

24:32=x:84

32 X x=24 X 84

32 X x=2016

x=2016÷32

∴ 63 would be reguired