Find the number of shares that can be bought for Rs.8200 if the market value is Rs.20 each with brokerage being 3.2%. Pick one: A) 237 B) 270 C) 177 D) 166 E) 397.2

Rationale: "explanation : cost of each share = ( 20 + 3.2 % of 20 ) = rs . 20.64 therefore , number of shares = 8200 / 20.64 = 397.2 answer : e"
Answer: E