find the number of shares that can be bought for rs . 8200 if the market value is rs . 20 each with brokerage being 2.5 % .
"explanation : cost of each share = ( 20 + 2.5 % of 20 ) = rs . 20.5 therefore , number of shares = 8200 / 20.5 = 400 answer : c"
floor(divide(8200, add(20, divide(2.5, const_100))))