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October 31, 2014

October 31, 2014

Posted by **maihul** on Friday, November 30, 2012 at 7:33am.

- maths -
**Reiny**, Friday, November 30, 2012 at 8:44amlet the amount be x

at compound interest:

amount = x(1.12)^2 = 1.2544x

at simple interest:

x(.12)(2) = .24x

so ....

(1.2544x - x) - .24x = 90

x(1.2544 - 1 - .24) = 90

x(.0144) = 90

x = 6250

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