a fruit seller sells mangoes at the rate of rs . 10 per kg and thereby loses 15 % . at what price per kg , he should have sold them to make a profit of 5 %
"explanation : 85 : 10 = 105 : x x = ( 10 × 105 / 85 ) = rs 12.35 option d"
divide(multiply(10, add(const_100, 5)), subtract(const_100, 15))