131 P5.ST.JC.18121148
Level 3
Adam wants to buy a TV set.
The usual price of the TV set is $1000.
There is a storewide promotional discount of 20%.
As a privileged card member, he is entitled to another 10% discount of the discounted price.
How much does he pay for the TV set in all?
3 m
Percent of a whole Discount Percent of different bases Units method
132 P5.ST.JC.18121149
Level 1
Adam wants to buy a TV set. The usual price of the TV set is $1000.
He needs to pay a GST of 10%.
  1. How much is the GST?
  2. How much does he pay for the TV set in all?
2 m
Percent of a whole GST Units method
133 P5.VO.NK.23012637
Level 3
A cuboid has a volume of 300 cm3. Its base is a rectangle which has a perimeter of 32 cm. The ratio of the length to the breadth of the rectangle is 5 : 3. Find its height.
3 m
Volume of cuboid Base area x height Area Perimeter Ratio to units Units method
134 P5.RD.JC.17083120
Level 3
The figure is not drawn to scale. The ratio of the area of the rectangle to the area of the circle to the area of the triangle is 21 : 17 : 4. If 14 of the triangle and 37 of the rectangle are shaded, what is the ratio of the total shaded area to the total of the unshaded area? Leave your answer in the simplest form.
4 m
Fraction of a whole Finding ratio R Simplest form Area perimeter Overlapping area Repeated identity Units method
135 P5.ST.JC.18121150
Level 3
The price of a TV set with 5% GST is $1050.
  1. How much does Adam have to pay if the GST is increased to 10%?
  2. How much more must Adam pay because of the GST increase?
3 m
Percent of a whole GST Units method
136 P5.ST.JC.18121151
Level 3
The price of a TV set with 10% GST is $1100.
  1. How much does Adam have to pay if the GST is decreased to 5%?
  2. How much saving does Adam enjoy as a result of the decrease in GST?
3 m
Percent of a whole GST Units method
137 P5.RD.NK.22122306
Level 3
Two identical pails C and D contained some water. Pail C was 14 filled and Pail D was 1/5 filled. The ratio of the total mass of Pail C and the water in it to the total mass of Pail D and the water in it was 8 : 7. The total mass of the two pails and the water they contained was 3150 g. What is the mass of an empty pail?
4 m
F Addition & subtraction Fraction to units Ratio to units Repeated identity Units method
138 P5.ST.JC.18121135
Level 2
Adam's monthly income is $2000.
He spends 60% and
saves the rest.
How many months will he take to save $4800?
3 m
Percent of a set Units method
139 P5.PC.NK.22122107
Level 3
Linda had a story book with 440 pages. She read 50% of the story book on Thursday, 35% of the story book on Friday and the rest on Saturday.
  1. How many pages did she read on Saturday?
  2. How many more pages did she read on Thursday than on Saturday?
3 m
Percent of a whole Units method
140 P5.DE.NK.23010312
JLevel 2
ayne had just enough money to buy 9 kg of sugar. However, she bought only 5 kg of sugar and used the remaining money to buy 3 packets of cookies which cost $2.40 each. How much did Jayne pay for the sugar she bought?
3 m
D Mulitplication D Division Units method

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