if 31 % of a number is 46.5 , the number is ?
"answer let 31 % of a = 46.5 ⇒ ( 31 x a ) / 100 = 46.5 ∴ a = ( 46.5 x 100 ) / 31 = 150 correct option : a"
divide(divide(46.5, const_100), divide(31, const_100))