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Friday, December 16, 2011

Masynne's Percent Post

7. A herd of 100 Caribou was moved to a new location. The population increased by 10% the first year and the increased 20% the second year.

a)Find the population after the second year.
The population was 132 in the second year.

b)The increase was not 30% because the 20% increase in the second year was based on a new population after the first increase.

13. A Ski jacket has been marked down on three occasions , first20% off, then 25% off the previous price. What is the overall percent saved?

The overall percent saved is 70%.

9.Arjay was thinking of buying a car worth $23 000, but delayed purchasing the car for a year. During the year, the cost of the car increased by 3.2%.

a)What was the price of the car when Arjay purchased it ?
The price was $23 736 when Arjay purchased it.

b)What was the total cost of the car including 5% GST and 5% PST?
The total cost is $26 109.60

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