Gretal invests $5000 at a rate of 2% per year compound interest.
Calculate the value of her investment at the end of 3 years.
$ ................................................
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Syllabus Edition
First teaching 2021
Last exams 2024
Gretal invests $5000 at a rate of 2% per year compound interest.
Calculate the value of her investment at the end of 3 years.
$ ................................................
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Dean invests $500 for 10 years at a rate of 1.7% per year simple interest.
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Calculate the total interest earned during the 10 years.
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$ ................................................
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Boris invests $550 at a rate of 2% per year simple interest.
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Calculate the value of the investment at the end of 10 years.
 $ ...............................................
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Dina invests $600 for 5 years at a rate of 2% per year compound interest.
Calculate the value of this investment at the end of the 5 years.
$ ...................................................
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Scott invests $500 for 7 years at a rate of 1.5% per year simple interest.
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Calculate the value of his investment at the end of the 7 years.
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$....................................................
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The population of a city is increasing exponentially at a rate of 2% each year.
The population now is 256 000.
Calculate the population after 30 years.
Give your answer correct to the nearest thousand.
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Roland invests $12 000 in an account that pays compound interest at a rate of 2.2% per year.
Calculate the value of his investment at the end of 6 years.
Give your answer correct to the nearest dollar.
$ ...............................................
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Sara invests $500 for 15 years at a rate of 2% per year simple interest.
Calculate the total interest Sara receives.
$ ...............................................
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Marlene invests $550 at a rate of 1.9% per year compound interest.
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Calculate the value of the investment at the end of 10 years.
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$ ..............................................
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Beth invests $2000 at a rate of 2% per year compound interest.
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Ollie invests $200 at a rate of 0.0035% per day compound interest.
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Calculate the value of Ollie’s investment at the end of 1 year.
[1 year = 365 days.]
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$ ................................................
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The value of a gold ring increases exponentially at a rate of 5% per year.
The value is now $882.
$ ................................................... [2]
[2]
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Mohsin’s earnings increase exponentially at a rate of 8.7% each year.
During 2018 he earned $195 600.
During 2027, how much more does he earn than during 2018?
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$ ...................................................
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Bryan invested $480 in an account 4 years ago.
The account pays compound interest at a rate of 2.1% per year.
Today, he uses some of the money in this account to buy a bicycle costing $430.
Calculate how much money remains in his account.
$ ..................................................
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In a city the population is increasing exponentially at a rate of 1.6% per year.
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Find the overall percentage increase at the end of 20 years.
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............................................... %Â
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Alan invests $200 at a rate of  per year compound interest.
After 2 years the value of his investment is $206.46.
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Show that   .
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The population of a village decreases exponentially at a rate of 4% each year.
The population is now 255.
Calculate the population 16 years ago.
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The population of the Earth in 2017 was estimated to be 7.53 × 109.
The population of the Earth in 2000 was estimated to be 6.02 × 109.
Assume that the population of the Earth increased exponentially by % each year for these 17 years.
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Find the value of .
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................................................
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Edna invests $500 at a rate of % per year compound interest.
At the end of 6 years, the value of Edna’s investment is $559.78.
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Find the value of .
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...............................................
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The value of the campsite has increased exponentially by 1.5% every year since it opened 30 years ago.Â
Calculate the value of the campsite now as a percentage of its value 30 years ago.
Â
 ............................................. %
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The value of Dhanu’s model railway is $550.
This value increases exponentially at a rate of % per year.
At the end of 5 years the value will be $736.
Calculate the value of .
 .................................................
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Hans invests $550 at a rate of % per year compound interest.
At the end of 10 years, the value of the investment is $638.30, correct to the nearest cent.
Find the value of
= ..............................................
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The population of a village is 6400.
The population is decreasing exponentially at a rate of  per year.
After 22 years, the population will be 2607.
Â
Find the value of .
Â
= ....................................................
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The number of a particular newspaper sold decreases exponentially by each year.
Over a period of 21 years the number of newspapers sold decreases from to .
Calculate the value of .Â
Â
= ..............................................
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A bacteria population increases exponentially at a rate of % each day.
After 32 days, the population has increased by 309%.
Find the value of .
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= .................................................
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Over a period of 3 years, a company’s sales of biscuits increased from 15.6 million packets to 20.8 million packets.
The sales increased exponentially by the same percentage each year.
Calculate the percentage increase each year.
............................................ %
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Tomas has two cars.
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