Question

A bank offers 5% compound interest calculated on half-yearly basis. a customer deposits rs. 6400 each on 1st january and 1st july of a year. at the end of the year, the amount he would have gained by way of interest is (a) rs. 220 (b) rs. 244 (c) rs. 222 (d) rs. 223 (e) rs. 425

Answer 1

The correct answer is RS.484
BUT THAT OPTION WERE NOT GIVEN.
I HAD TRIED AND ALL THE TIMES MY ANSWER IS 484.