in a 100 m race a beats b by 25 m b beats c by 4 then a beats c by
a : b = 100 : 75 b : c = 100 : 96 . a : c = ( a / b x b / c ) = ( 100 / 75 x 100 / 96 ) = 100 / 72 = 100 : 72 . a beats c by ( 100 - 72 ) m = 28 m . answer : e
subtract(100, divide(100, multiply(divide(100, subtract(100, 25)), divide(100, subtract(100, 4)))))