if the sales tax be reduced from 4 ( 1 / 2 ) % to 3 ( 1 / 2 ) % , then what difference does it make to a person who purchases a bag with marked price of rs . 10500 ?
"explanation : required difference = ( 4 ( 1 / 2 ) of rs . 10500 ) - ( 3 ( 1 / 2 ) of rs . 10500 ) = ( 9 / 2 – 7 / 2 ) % of rs . 10500 = ( 1 ) x ( 1 / 100 ) x 10500 = rs . 105 answer a"
subtract(multiply(add(divide(add(4, divide(3, 4)), const_100), 1), divide(10500, add(divide(add(divide(1, 2), 1), const_100), 1))), 10500)