ram sold two bicycles , each for rs . 990 . if he made 10 % profit on the first and 10 % loss on the second , what is the total cost of both bicycles ?
( 10 * 10 ) / 100 = 1 % loss 100 - - - 99 ? - - - 1980 = > rs . 2000 answer : a
add(add(990, multiply(990, divide(10, const_100))), subtract(990, multiply(990, divide(10, const_100))))