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December 18, 2014

December 18, 2014

Posted by **Tee** on Monday, July 22, 2013 at 4:30am.

(a) How much interest was accrued within the second year of the investment?

(b) What will be the value of Kate’s investment at the end of the five years?

- Maths B -
**Reiny**, Monday, July 22, 2013 at 8:09amb) amount after 1½ years

= 45000(1 + .0399/4)^6

= 47761.31

so for the next 3½ the above is invested at .29% pa compounded semi-annually

final amount

= 45000(1 + .0399/4)^6 (1 + .0429/2)^7

= 55411.01

a) If I read this correctly we need

amount she has after 2 years - amount she has after 1 year

= 45000(1 + .0399/4)^6 (1+ .0429/2)^1 - 45000(1 + .0399/4)^4

= 48785.79 - 46822.54

= 1963.25

For questions like this, I usually draw a "time-line" and mark on it the different critical times and interest rates.

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