Sec 2 G1 Maths Money matters worksheet with answers

A free Sec 2 G1 Maths worksheet on money matters: 8 questions, 30 marks, short questions first and then structured ones, in the school exam style. The answers and full worked solutions are on the last page.

In the print window, choose Save as PDF to download it.

Or practise it online with step-by-step help when you get one wrong.

Try a question: Money matters

Free · no sign-up

Answer a real practice question. Get it wrong and MugCorner shows you where it went wrong, with hints and a step-by-step guide.

MugCornerT-Leng Tuition · mugcornersg.com

Sec 2 G1 Maths worksheet: Money matters

Total: 30 marksSuggested time: 50 minutes

Name: ______________________________Class: ____________ Date: ____________

Answer all questions. Show all your working. Give non-exact answers correct to 3 significant figures, or 1 decimal place for angles in degrees, unless the question says otherwise.

Section A

Currency	S$1 buys
Thai baht (THB)	25.6
Hong Kong dollars (HK$)	5.85
euros (€)	0.68

The table shows a money changer's exchange rates. Jun Jie changes S$50 into Thai baht. Find the amount, in Thai baht, that Jun Jie receives. Give your answer correct to 2 decimal places where necessary.

Answer[1]

A bicycle has a marked price of $380 before GST. During a sale it is sold at a 10% discount, and 9% GST is then added to the discounted price. Find the amount paid, correct to the nearest cent.

Answer$[2]

Nur deposits some money in a bank that pays simple interest of 3.5% per annum. After 6 years, the interest earned is $504. Find the amount of money Nur deposited.

Answer$[2]

Service	Usage	Rate
Electricity	320 kWh	$0.30 per kWh
Water	18 m³	$1.50 per m³
Gas	40 kWh	$0.22 per kWh

The table shows a household's usage of utilities in a month. 9% GST is added to the total charges. Find the total amount payable, correct to the nearest cent.

Answer$[3]

(a)Kumar buys an air-conditioner on hire purchase. Kumar pays a deposit of $144, followed by 24 monthly instalments of $62.64. Find the total amount Kumar pays for it.

Answer (a)$[2]

(b)Jun Jie buys a television on hire purchase. Jun Jie pays a deposit of $216, followed by 30 monthly instalments of $46.92. Find the total amount Jun Jie pays for it.

Answer (b)$[2]

(a)Siti puts $6,000 in a fixed deposit account that pays 3% per annum simple interest. Find the total amount in the account after 5 years.

Answer (a)$[3]

(b)Ali deposits $4,000 in a bank that pays simple interest of 3% per annum. Find the total amount in the account after 4 years.

Answer (b)$[3]

Section B

Currency	S$1 buys
Thai baht (THB)	26.2
Hong Kong dollars (HK$)	5.85
US dollars (US$)	0.76

(a)The table shows a money changer's exchange rates. Kumar changes S$200 into US dollars. Find the amount, in US dollars, that Kumar receives. Give your answer correct to 2 decimal places where necessary.

Answer (a)[2]

Water used in a month	Price
First 30 m³	$1.40 per m³
Above 30 m³	$1.90 per m³

(b)A household uses 52 m³ of water in a month. The table shows the water charges. Find the cost of the water used.

Answer (b)$[2]

Item	Price
Chicken wings	$9.90
Sambal kangkong	$12.80
Mango pudding	$5.50

(c)The table shows the food a family ordered at a restaurant. A 10% service charge is added to the bill, and then 9% GST is charged on the total. Find the amount the family pays, correct to the nearest cent.

Answer (c)$[2]

Currency	S$1 buys
Thai baht (THB)	25.6
Hong Kong dollars (HK$)	5.85
euros (€)	0.68

(a)The table shows a money changer's exchange rates. After a holiday, Ben changes THB 1024 back into Singapore dollars at the same rate. Find the amount, in Singapore dollars, that Ben receives, correct to the nearest cent.

Answer (a)[2]

(b)(i)An air-conditioner costs $410 before GST. Find its price after 9% GST is added.

Answer (b)(i)$[1]

(b)(ii)A mobile phone costs $670 before GST. Find its price after 9% GST is added.

Answer (b)(ii)$[1]

(c)Chen Wei puts $6,000 in a fixed deposit account that pays 3.5% per annum simple interest. Find the interest earned after 3 years.

Answer (c)$[2]

END OF PAPER

Answers and worked solutions

Question 1

Answer:

= 1280

[1]

50 \times 25.6

= 1280

Jun Jie receives THB 1280.

Question 2

Answer: The amount paid is $372.78.[2]

\dfrac{90}{100} \times 380 = 342

342 \times \dfrac{109}{100} = 372.78

The amount paid is $372.78.

Question 3

Answer: Nur deposited $2400.[2]

I = \dfrac{PRT}{100}

504 = \dfrac{P \times 3.5 \times 6}{100}

P = \dfrac{504 \times 100}{3.5 \times 6}

= 2400

Nur deposited $2400.

Question 4

Answer: The total amount payable is $143.66.[3]

\text{Electricity: } 320 \times 0.30 = 96

\text{Water: } 18 \times 1.50 = 27

\text{Gas: } 40 \times 0.22 = 8.80

96 + 27 + 8.80 = 131.80

131.80 \times \dfrac{109}{100} = 143.662

\approx 143.66

(to the nearest cent)The total amount payable is $143.66.

Question 5

(a)Answer: The total amount paid is $1647.36.[2]

24 \times 62.64 = 1503.36

\text{Total} = 144 + 1503.36

\phantom{\text{Total}} = 1647.36

The total amount paid is $1647.36.

(b)Answer: The total amount paid is $1623.60.[2]

30 \times 46.92 = 1407.60

\text{Total} = 216 + 1407.60

\phantom{\text{Total}} = 1623.60

The total amount paid is $1623.60.

Question 6

(a)Answer: The total amount is $6900.[3]

I = \dfrac{PRT}{100}

I = \dfrac{6000 \times 3 \times 5}{100}

= 900

\text{Amount} = 6000 + 900

\phantom{\text{Amount}} = 6900

The total amount is $6900.

(b)Answer: The total amount is $4480.[3]

I = \dfrac{PRT}{100}

I = \dfrac{4000 \times 3 \times 4}{100}

= 480

\text{Amount} = 4000 + 480

\phantom{\text{Amount}} = 4480

The total amount is $4480.

Question 7

(a)Answer: Kumar receives US$152.[2]

200 \times 0.76

= 152

Kumar receives US$152.

(b)Answer: The water costs $83.80.[2]

30 \times 1.40 = 42

52 - 30 = 22 \text{ m}^3

22 \times 1.90 = 41.80

42 + 41.80 = 83.80

The water costs $83.80.

(c)Answer: The family pays $33.81.[2]

9.90 + 12.80 + 5.50 = 28.20

28.20 \times \dfrac{110}{100} = 31.02

31.02 \times \dfrac{109}{100} = 33.8118

\approx 33.81

(to the nearest cent)The family pays $33.81.

Question 8

(a)Answer: Ben receives S$40.00.[2]

\dfrac{1024}{25.6}

= 40

Ben receives S$40.00.

(b)(i)Answer: The price after GST is $446.90.[1]

\dfrac{109}{100} \times 410 = 446.90

The price after GST is $446.90.

(b)(ii)Answer: The price after GST is $730.30.[1]

\dfrac{109}{100} \times 670 = 730.30

The price after GST is $730.30.

(c)Answer: The interest is $630.[2]

I = \dfrac{PRT}{100}

I = \dfrac{6000 \times 3.5 \times 3}{100}

= 630

The interest is $630.

Sec 2 G1 Maths Money matters worksheet with answers

In the print window, choose Save as PDF to download it.

Or practise it online with step-by-step help when you get one wrong.

Try a question: Money matters

Free · no sign-up

Answer a real practice question. Get it wrong and MugCorner shows you where it went wrong, with hints and a step-by-step guide.

MugCornerT-Leng Tuition · mugcornersg.com

Sec 2 G1 Maths worksheet: Money matters

Total: 30 marksSuggested time: 50 minutes

Name: ______________________________Class: ____________ Date: ____________

Answer all questions. Show all your working. Give non-exact answers correct to 3 significant figures, or 1 decimal place for angles in degrees, unless the question says otherwise.

Section A

Currency	S$1 buys
Thai baht (THB)	25.6
Hong Kong dollars (HK$)	5.85
euros (€)	0.68

Answer[1]

A bicycle has a marked price of $380 before GST. During a sale it is sold at a 10% discount, and 9% GST is then added to the discounted price. Find the amount paid, correct to the nearest cent.

Answer$[2]

Nur deposits some money in a bank that pays simple interest of 3.5% per annum. After 6 years, the interest earned is $504. Find the amount of money Nur deposited.

Answer$[2]

Service	Usage	Rate
Electricity	320 kWh	$0.30 per kWh
Water	18 m³	$1.50 per m³
Gas	40 kWh	$0.22 per kWh

The table shows a household's usage of utilities in a month. 9% GST is added to the total charges. Find the total amount payable, correct to the nearest cent.

Answer$[3]

(a)Kumar buys an air-conditioner on hire purchase. Kumar pays a deposit of $144, followed by 24 monthly instalments of $62.64. Find the total amount Kumar pays for it.

Answer (a)$[2]

(b)Jun Jie buys a television on hire purchase. Jun Jie pays a deposit of $216, followed by 30 monthly instalments of $46.92. Find the total amount Jun Jie pays for it.

Answer (b)$[2]

(a)Siti puts $6,000 in a fixed deposit account that pays 3% per annum simple interest. Find the total amount in the account after 5 years.

Answer (a)$[3]

(b)Ali deposits $4,000 in a bank that pays simple interest of 3% per annum. Find the total amount in the account after 4 years.

Answer (b)$[3]

Section B

Currency	S$1 buys
Thai baht (THB)	26.2
Hong Kong dollars (HK$)	5.85
US dollars (US$)	0.76

Answer (a)[2]

Water used in a month	Price
First 30 m³	$1.40 per m³
Above 30 m³	$1.90 per m³

(b)A household uses 52 m³ of water in a month. The table shows the water charges. Find the cost of the water used.

Answer (b)$[2]

Item	Price
Chicken wings	$9.90
Sambal kangkong	$12.80
Mango pudding	$5.50

Answer (c)$[2]

Currency	S$1 buys
Thai baht (THB)	25.6
Hong Kong dollars (HK$)	5.85
euros (€)	0.68

Answer (a)[2]

(b)(i)An air-conditioner costs $410 before GST. Find its price after 9% GST is added.

Answer (b)(i)$[1]

(b)(ii)A mobile phone costs $670 before GST. Find its price after 9% GST is added.

Answer (b)(ii)$[1]

(c)Chen Wei puts $6,000 in a fixed deposit account that pays 3.5% per annum simple interest. Find the interest earned after 3 years.

Answer (c)$[2]

END OF PAPER

Answers and worked solutions

Question 1

Answer:

= 1280

[1]

50 \times 25.6

= 1280

Jun Jie receives THB 1280.

Question 2

Answer: The amount paid is $372.78.[2]

\dfrac{90}{100} \times 380 = 342

342 \times \dfrac{109}{100} = 372.78

The amount paid is $372.78.

Question 3

Answer: Nur deposited $2400.[2]

I = \dfrac{PRT}{100}

504 = \dfrac{P \times 3.5 \times 6}{100}

P = \dfrac{504 \times 100}{3.5 \times 6}

= 2400

Nur deposited $2400.

Question 4

Answer: The total amount payable is $143.66.[3]

\text{Electricity: } 320 \times 0.30 = 96

\text{Water: } 18 \times 1.50 = 27

\text{Gas: } 40 \times 0.22 = 8.80

96 + 27 + 8.80 = 131.80

131.80 \times \dfrac{109}{100} = 143.662

\approx 143.66

(to the nearest cent)The total amount payable is $143.66.

Question 5

(a)Answer: The total amount paid is $1647.36.[2]

24 \times 62.64 = 1503.36

\text{Total} = 144 + 1503.36

\phantom{\text{Total}} = 1647.36

The total amount paid is $1647.36.

(b)Answer: The total amount paid is $1623.60.[2]

30 \times 46.92 = 1407.60

\text{Total} = 216 + 1407.60

\phantom{\text{Total}} = 1623.60

The total amount paid is $1623.60.

Question 6

(a)Answer: The total amount is $6900.[3]

I = \dfrac{PRT}{100}

I = \dfrac{6000 \times 3 \times 5}{100}

= 900

\text{Amount} = 6000 + 900

\phantom{\text{Amount}} = 6900

The total amount is $6900.

(b)Answer: The total amount is $4480.[3]

I = \dfrac{PRT}{100}

I = \dfrac{4000 \times 3 \times 4}{100}

= 480

\text{Amount} = 4000 + 480

\phantom{\text{Amount}} = 4480

The total amount is $4480.

Question 7

(a)Answer: Kumar receives US$152.[2]

200 \times 0.76

= 152

Kumar receives US$152.

(b)Answer: The water costs $83.80.[2]

30 \times 1.40 = 42

52 - 30 = 22 \text{ m}^3

22 \times 1.90 = 41.80

42 + 41.80 = 83.80

The water costs $83.80.

(c)Answer: The family pays $33.81.[2]

9.90 + 12.80 + 5.50 = 28.20

28.20 \times \dfrac{110}{100} = 31.02

31.02 \times \dfrac{109}{100} = 33.8118

\approx 33.81

(to the nearest cent)The family pays $33.81.

Question 8

(a)Answer: Ben receives S$40.00.[2]

\dfrac{1024}{25.6}

= 40

Ben receives S$40.00.

(b)(i)Answer: The price after GST is $446.90.[1]

\dfrac{109}{100} \times 410 = 446.90

The price after GST is $446.90.

(b)(ii)Answer: The price after GST is $730.30.[1]

\dfrac{109}{100} \times 670 = 730.30

The price after GST is $730.30.

(c)Answer: The interest is $630.[2]

I = \dfrac{PRT}{100}

I = \dfrac{6000 \times 3.5 \times 3}{100}

= 630

The interest is $630.