51 P5.ST.JC.18121175
Level 3
Adam has 300 stickers in 3 colours.
40% of the stickers are blue.
The rest are red and yellow stickers in the ratio 2 : 3.
  1. What percentage of the stickers are yellow?
  2. How many red stickers are there?
3 m
Fraction to units Finding percent Percent of a set Ratio to units Combined repeated identity Remainder concept Units table Units manipulation
52 P5.ST.JC.18121177
Level 3
In a school, there is a total of 400 people.
30% are adults.
The rest are children.
The number of boys and girls is in the ratio of 2 : 5.
  1. What percentage of the people are boys?
  2. How many girls are there?
3 m
Ratio to units Finding percent Percent of a set Percent to units Combined repeated identity Remainder concept Units table
53 P5.ST.JC.18160201
Level 3
In a school, there is a total of 400 people.
30% are adults.
The rest are children.
The number of boys and girls is in the ratio of 5 : 9.
  1. What percentage of the people are boys?
  2. How many girls are there?
3 m
Ratio to units Finding percent Percent of a set Percent to units Combined repeated identity Remainder concept Units table Units manipulation
54 P6.DA.JC.15051410
Level 3 PSLE
A company offered 120 radios at 20% discount during a 7-day sale. The line graph shows the number of radios left unsold at the end of each day.
  1. On which day was the most number of radios sold? Give your answer in number. (Eg 1)
  2. What percentage of the 120 radios were sold in the first five days of the sale?
  3. During the sale, the discounted price of the radios was $60. After the sale, the remaining radios were sold without discount. What was the total amount of money collected from selling all 120 radios?
4 m
Line graph Min-max Finding percent Percent of a set Discount Remainder concept Model Part-whole
55 P6.PA.JM.18011216
Level 3
Study the patterns.
  1. Find the total number of triangles in Figure 30.
  2. Express the biggest triangle as a percentage of the total possible number of triangles in Figure 30. Correct your answer to 2 decimal places.
5 m
Equal intervals D Place values D Round off Finding percent
56 P5.PC.JC.17083144
Level 3
60% of the sweets in Packet A were blueberry sweets and the rest were strawberry sweets. Packet B had 25% more blueberry sweets than packet A and twice as many sweets than the total number of sweets in Packet A. Find the percentage of the strawberry sweets in Packet B that would need to be transferred into Packet A, so that there were an equal number of blueberry and strawberry sweets in Packet A.
4 m
Finding percent Percent of a set Percent to units Percent of different bases More than or less than Times as many Equal stage after Internal transfer Units table Decimal units
57 P6.RD.TL.16010170
Level 3
The average number of mangosteens in Carton C, Carton D and Carton E is 24 and it is 8 more than the average number of papayas in the 3 cartons. 16 of the papayas are in Carton C and the papayas in Carton C is 80% of the number of papayas in Carton D. If each carton has the same number of fruits, what percentage of the fruits in Carton E are mangosteens?
5 m
Fraction to units Finding percent Percent to units Average More than or less than Unchanged difference Units table
58 P6.RD.TL.16010152
Level 3
Sarah bought a total of 300 big and small candies. Then she decided to exchange 60% of her big candies for the small ones in the ratio of 3 : 5. After the exchange, she had 366 candies. What percentage of the candies she bought were small ones?
5 m
Ratio to units Finding percent Percent to units Proportional exchange Units table
59 P5.PC.JM.17083165
Level 3 PSLE
Mr Devon bought an humidifier for $216 after a discount of 25%.
  1. What was the price of the humidifier before discount?
  2. He paid $128 for a fan. The total discount for the humidifier and fan was $104. What was the percentage discount given for the fan?
5 m
Finding percent Discount Units method
60 P5.PC.JM.17083151
Level 3
At first, the ratio of the number of boys to the number of girls at a school playground was 2 : 5. When 48 girls and some boys entered the playground, the number of girls increased by 12% and the total number of children at the playground increased by 20%.
  1. How many boys were there at first?
  2. What percentage of the children at the playground were boys in the end? Express your answer as a mixed number.
5 m
Finding percent Percent of a set Percent change by Percent of different bases Mixed numbers Ratio to units All change Decimal units

5 per page

10 per page

20 per page

Symbols

x2
x3
₵
$
⊥
//
∠
°
π
%
:
\[ \]
STUDENT
Navigations
Contact Us
Members
Links