Unit 9 Consumer Arithmetic

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# Unit 9 Consumer Arithmetic - PowerPoint PPT Presentation

Unit 9 Consumer Arithmetic. Unit 9 Consumer Arithmetic. Buying. Sale: \$1600 Plus VAT: 15%. Solution a) Total amount paid. ?. ?. ?. 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.

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### Unit 9Consumer Arithmetic

Sale: \$1600

Plus

VAT: 15%

Solution

a) Total amount paid

?

?

?

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

Sale: \$1600

Plus

VAT: 15%

?

?

?

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

### Unit 9Consumer Arithmetic

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### Unit 9Consumer Arithmetic

Hire Purchases

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

The cash price

The hire purchase price

The amount saved by buying the printer for cash rather than on hire purchase

Solution

a) Cash price

?

?

?

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

The cash price

The hire purchase price

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

?

?

?

?

?

?

?

### Unit 9Consumer Arithmetic

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Hire Purchases

Earning

### Unit 9Consumer Arithmetic

BASIC WEEK

Time Wages

40 hours J\$32000

Overtime is paid at 50% extra per hour.

Calculate

The basic hourly rate

The overtime hourly rate

The total wages for a worker who worked 10 hours overtime in one week

Solution

a) Basic hourly rate

?

?

?

BASIC WEEK

Time Wages

40 hours J\$32000

Overtime is paid at 50% extra per hour.

Calculate

The basic hourly rate

The overtime hourly rate

The total wages for a worker who worked 10 hours overtime in one week

Solution

b) Overtime hourly rate

?

?

?

?

?

?

BASIC WEEK

Time Wages

40 hours J\$32000

Overtime is paid at 50% extra per hour.

Calculate

The basic hourly rate

The overtime hourly rate

The total wages for a worker who worked 10 hours overtime in one week

Solution

c) Total wages

?

?

?

### Unit 9Consumer Arithmetic

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Earning

### Unit 9Consumer Arithmetic

Money Exchange

?

?

?

?

?

?

How much would you get for exchanging

£15 sterling into Jamaican dollars

J\$3000 into pounds sterling

\$300.00 US into Jamaican dollars

Solution

a)

b)

c)

### Unit 9Consumer Arithmetic

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Money Exchange

### Unit 9Consumer Arithmetic

Savings

?

?

?

?

?

?

?

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

### Unit 9Consumer Arithmetic

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Savings

### Unit 9Consumer Arithmetic

Increasing Value

?

?

?

?

?

?

?

?

?

?

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?

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?

?

An antique is valued at J\$4000. Its value increases by 5% each year for 3 years.

Find the value after two years

Show that the value after three years is J\$4630∙50

Solution

After one years the value is

After two years, its value is

b) Its values after 3 years is

### Unit 9Consumer Arithmetic

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Increasing Value