sandy wrote:
A deposit at a local bank earns between 2 percent and 5 percent simple interest in a year. If Shirley makes an initial deposit of $800 at the bank, which of the following could be the amount of money in her account at the end of one year?
A. $814
B. $820
C. $842
D. $848
E. $860
1% of $800 = $8
So, 2% of $800 = $16
So, at a 2% rate, Shirley has a TOTAL balance of $816
10% of $800 = $80
So, 5% of $800 = $40
So, at a 5% rate, Shirley has a TOTAL balance of $840
This means Shirley's balance is BETWEEN $816 and $840
Only answer choice B meets this condition.
Cheers,
Brent