Posted by **AR** on Tuesday, January 5, 2010 at 12:18pm.

Theo deposited $1,250 in a savings account that pays 6% interest,

compounded quarterly. What was his balance at the end of the second

quarter after the interest had been added?

- math 10 -
**Ms. Sue**, Tuesday, January 5, 2010 at 12:54pm
1250 * 0.06 = $75 yearly interest

75 / 4 = $18.75 first quarter interest

1250 + 18.75 = $1,268.75 balance at the end of the first quarter

Repeat the above steps to find the balance after the second quarter.

- math 10 -
**Shanta**, Tuesday, January 5, 2010 at 1:24pm
Actually the first steps are right except with compound interest you earn interest on interest, so just adding another 18.75 would not solve it. You have to account for the interest you earn the 1st quarter. So I got 1287.78

- math 10 -
**Reiny**, Tuesday, January 5, 2010 at 3:58pm
Amount = 1250(1 + .015)^2

= 1287.78

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