Question

42 kg cost $252. How many kg would you get with $72?

Answer 1

$1=42/252=1/6
$72=1/6x72=12 KG

Answer 2

$252 would you get 42kg
$1 " " "42/252 kg
$72 " " " 42×72/252
=12kg
$72 would you get 12kg