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Number, NAP-K4-CA39 SA

Dante deposits $5000 into a savings account which earns simple interest.

No deposits or withdrawals are made from this account.

After 4 years, Dante notices there is $5600 in the account.

What is the annual rate of interest for the account?

  %
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`3text(%)`

Show Worked Solution
`text(Interest per year)` `= (5600 – 5000)÷4`
  `= 600 ÷ 4`
  `= $150`

 

`:.\ text(Interest rate)` `= 150/5000 xx 100`
  `= 3 text(%)`

Filed Under: Financial Maths, Financial Maths Tagged With: Band 10, smc-3174-60-Simple interest, smc-892-60-Simple interest

Number, NAP-J4-CA33 SA

Cassie opens a savings account and deposits $900 into it.

She makes no more deposits and earns simple interest on her original deposit at 3.5% each year.

How much interest will Cassie earn after 4 years?

$ 
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`$126`

Show Worked Solution
`text(Interest earned)` `=Prn`
  `= 900 xx 3.5/100 xx 4`
  `= $126`

Filed Under: Financial Maths, Financial Maths Tagged With: Band 9, smc-3174-60-Simple interest, smc-892-60-Simple interest

Number, NAP-I4-CA28 SA

Mr. Soros put $500 into a simple interest account for a year.

He did not take any money out or add any money to the account.

At the end of the year he had $530 in the account.

What was the annual percentage interest rate?

   %
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`text(6%)`

Show Worked Solution
`text(Interest earned)` `= 530 – 500`
  `= $30`

 

`:.\ text{Interest rate (annual)}`

`= 30/500`

`= 0.06`

`= 6text(%)`

Filed Under: Financial Maths, Financial Maths Tagged With: Band 10, smc-3174-60-Simple interest, smc-892-60-Simple interest

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