After 4 years, Anne had $600.00 in the bank account. How much interest did she earn? (ROUND TO THE NEAREST CENT)

Anne inherited some money from her grandfather and put it in a bank account that earns 10% interest compounded quarterly. After 4 years, Anne had $600.00 in the bank account. How much interest did she earn? (ROUND TO THE NEAREST CENT)

1 Answer
Jun 28, 2018

10% compounded quarterly is 2.5% per quarter

Over 4 years there would be #4xx4=16# quarters

This gives us

Amount #xx 1.025^16=600#

Amount = #600/[1.025^16]#

Amount = 404.1749601

600 - 404.1749601= 195.8250399

Interest earnt is $195.83