if an article is sold at 19 % profit instead of 12 % profit , then the profit would be rs . 105 more . what is the cost price ?
"let the cost price of an article be rs . x . ( 19 % of x ) - ( 12 % of x ) = 105 19 x / 100 - 12 x / 100 = 105 = > 7 x = 105 * 100 = > x = 1500 cost price = rs . 1500 answer : c"
multiply(divide(105, 12), const_100)