This document contains 6 presentations on the topic of consumer arithmetic:
1. Buying - Examples of calculating total price paid and original price given a sale price
2. Hire Purchases - Calculating cash price, hire purchase price, and savings from buying for cash vs hire purchase
3. Earning - Examples of calculating hourly wages, overtime rates, and total wages earned
4. Money Exchange - Converting between currencies like pounds, dollars, and Jamaican dollars
5. Savings - Calculating interest earned over time and number of years to reach a savings goal
6. Increasing Value - Examples of calculating asset value increases over multiple years with compound interest
3. a) Calculate the
TOTAL amount a
customer pays for the
TV
b) The sale price of
$1600 is 20% LESS
THAN the original price.
Calculate the ORIGINAL
price
Solution
a) Total amount paid
?
?
?
4. b) The sale price of
$1600 is 20% LESS THAN
the original price. Calculate
the ORIGINAL price
Solution
b) If original price is $p,
then
?
?
?
5. Unit 9
Consumer Arithmetic
You have finished viewing:
Buying
Return to front slide
Presentation 1 Buying
Presentation 2 Hire Purchases
Presentation 3 Earning
Presentation 4 Money Exchange
Presentation 5 Savings
Presentation 6 Increasing Value
7. A printer is advertised for sale at J$84 000. A discount of
12% is given if it is bought for cash. Its can also be bought
on hire purchase by paying a deposit of J$29 400 followed by
24 monthly payments of J$ 2300 each.
Calculate
a)The cash price
b)The hire purchase price
c)The amount saved by buying the printer for cash rather
than on hire purchase
Solution
a) Cash price
?
?
?
8. A printer is advertised for sale at J$84 000. A discount of
12% is given if it is bought for cash. Its can also be bought
on hire purchase by paying a deposit of J$29 400 followed by
24 monthly payments of J$ 2300 each.
Calculate
a)The cash price
b)The hire purchase price
c)The amount saved by buying the printer for cash rather
than on hire purchase
Solution
b) Hire purchase price
c) Amount saved by paying cash
??
? ?
?
? ?
9. Unit 9
Consumer Arithmetic
You have finished viewing:
Hire Purchases
Return to front slide
Presentation 1 Buying
Presentation 2 Hire Purchases
Presentation 3 Earning
Presentation 4 Money Exchange
Presentation 5 Savings
Presentation 6 Increasing Value
11. BASIC WEEK
Time Wages
40 hours J$32000
BASIC WEEK
Time Wages
40 hours J$32000
Overtime is paid at 50% extra per hour.
Calculate
a)The basic hourly rate
b)The overtime hourly rate
c)The total wages for a worker who worked 10 hours
overtime in one week
Solution
a) Basic hourly rate
?
?
?
12. BASIC WEEK
Time Wages
40 hours J$32000
BASIC WEEK
Time Wages
40 hours J$32000
Overtime is paid at 50% extra per hour.
Calculate
a)The basic hourly rate
b)The overtime hourly rate
c)The total wages for a worker who worked 10 hours
overtime in one week
Solution
b) Overtime hourly rate
?
? ?
?
?
?
13. BASIC WEEK
Time Wages
40 hours J$32000
BASIC WEEK
Time Wages
40 hours J$32000
Overtime is paid at 50% extra per hour.
Calculate
a)The basic hourly rate
b)The overtime hourly rate
c)The total wages for a worker who worked 10 hours
overtime in one week
Solution
c) Total wages
?
?
?
14. Unit 9
Consumer Arithmetic
You have finished viewing:
Earning
Return to front slide
Presentation 1 Buying
Presentation 2 Hire Purchases
Presentation 3 Earning
Presentation 4 Money Exchange
Presentation 5 Savings
Presentation 6 Increasing Value
16. How much would you get for exchanging
a)£15 sterling into Jamaican dollars
b)J$3000 into pounds sterling
c)$300.00 US into Jamaican dollars
Solution
a)
b)
c)
Currency Exchange Rate
Pound Sterling £ 130 J$
US $ 90 JS
? ?
?
?
? ?
17. Unit 9
Consumer Arithmetic
You have finished viewing:
Money Exchange
Return to front slide
Presentation 1 Buying
Presentation 2 Hire Purchases
Presentation 3 Earning
Presentation 4 Money Exchange
Presentation 5 Savings
Presentation 6 Increasing Value
19. In how many years would $100, invested at
5% per annum simple interest, amount to
$160?
The interest in one year
The total amount of interest needed is
So the number of years required is
??
?
?
?
?
?
20. Unit 9
Consumer Arithmetic
You have finished viewing:
Savings
Return to front slide
Presentation 1 Buying
Presentation 2 Hire Purchases
Presentation 3 Earning
Presentation 4 Money Exchange
Presentation 5 Savings
Presentation 6 Increasing Value
22. An antique is valued at J$4000. Its value increases by 5%
each year for 3 years.
a)Find the value after two years
b)Show that the value after three years is J$4630∙50
Solution
a)After one years the value is
After two years, its value is
b) Its values after 3 years is
??
?
?
?
? ? ? ?
?
?
? ? ?
?
23. Unit 9
Consumer Arithmetic
You have finished viewing:
Increasing Value
Return to front slide
Presentation 1 Buying
Presentation 2 Hire Purchases
Presentation 3 Earning
Presentation 4 Money Exchange
Presentation 5 Savings
Presentation 6 Increasing Value