81 P6.RA.TL.16010134
Level 3
Wendy and Anna have $294. Violet and Wendy have $493. The ratio of Anna to Violet is 1 : 2. How much does Wendy have?
3 m
[Ratio to units Money Repeated identity Model Units method
82 P6.RD.TL.17042603
Level 3
The square is divided into 4 parts, W, X, Y and Z. W and X form 12 of the square. The area of Y is double of the area of Z, while the ratio of the area of X to the area of W is 1 : 3. What fraction of the square is the sum of the area of X and Y? Leave the answer(s) in the simplest form.
3 m
Fraction to units Ratio to units Area perimeter Square Times as many Unchanged total Units table Units manipulation
83 P6.RA.NK.17082801
Level 3
The figure, not drawn to scale, shows a rectangle, WXYZ, which is divided in 4 parts, A, B, C, D. The ratio of the area of D to the area of C is 1 : 3. The ratio of the area of C to the area of B is 2 : 7. If the area of A is 238 cm2 , what is the area of the rectangle WXYZ?
3 m
Area Perimeter Rectangle Ratio to units Repeated identity Units table
84 P6.RA.TL.17042609
Level 3
The figure is made up of two squares and a triangle. The ratio of the area of Triangle X to that of Square Z is 11 : 1. The ratio of the shaded area to that of the unshaded area is 1 : 3. If the difference between areas of Triangle X and Square Y is 464 cm2, what is the area of Square Z?
3 m
Ratio to units Area Perimeter Unchanged total Units table
85 P5.ST.JC.18121098
Level 2
The ratio of Adam's money to Bryan's money is 4 : 3.
The ratio of Bryan's money to Chris' money is 2 : 1.
The total amount that they have is $510.
How much more money does Adam have than Chris?
3 m
Ratio to units Repeated identity Units table
86 P6.RD.TL.16010120
Level 3
Lisa's and Natalie's savings were in the ratio of 4 : 9. Both of them shared the cost of their grandfather's gift equally. Lisa's remaining savings was 14 as much as Natalie's savings. What percentage of her savings did Lisa spend? Correct the answer to 1 decimal place.
3 m
Fraction to units D Place values D Round off Ratio to units Finding percent Unchanged difference Units table
87 P5.RA.JM.17083138
Level 3
Jermaine had a piece of wire 140 cm long. He used it to form a rectangle with its length and breadth in the ratio 3 : 2.
  1. What is the length of the rectangle?
  2. What is the area of the rectangle?
3 m
Ratio to units Area Perimeter Rectangle Units method
88 P5.ST.JC.18121099
Level 3
In a school, the ratio of adults to the number of children is 12 : 7.
The ratio of the number of boys to the number of girls is 3 : 2.
There are 70 more boys than girls.
How many people are there in the school?
3 m
Ratio to units Combined repeated identity Units table
89 P6.RD.TL.16010115
Level 3
Wendyville School had 1220 students and Janeville School had 30% more students. When an equal number of students left each school, the ratio of the students in Janeville School to that in Wendyville School became 2 : 1. How many students were there in both schools in the end?
3 m
Ratio to units Percent of a set More than or less than Unchanged difference Units table
90 P5.ST.JC.18121100
Level 3
Adam receives his allowance of $250.
The ratio of Adam's spending to Adam's saving is 2 : 3.
The ratio of Adam's spending on food to the remaining of other expenses is 1 : 4.
  1. How much does Adam save?
  2. How much less does Adam spend on food than other expenses?
3 m
Ratio to units Combined repeated identity Remainder concept Units table
91 P6.RD.NK.21060207
Level 3 PSLE
At first, the ratio of the number of boys to the number of girls in a club was 4 : 1. After 10 boys and 10 girls joined the club, the ratio became 3 : 1.
  1. Did the percentage of members who were girls increase (1), decrease (2) or remain the same (3)? Give your answer in number. (Eg Increase = 1)
  2. In the end, how many boys were there in the club?
3 m
Ratio to units Percent change to Unchanged difference Units table
92 P5.ST.JC.18121102
Level 2
The ratio of the number of girls to the number of boys is 3 : 5.
Each girl is given 4 stickers.
Each boy is given 2 stickers.
The total number of stickers is 220.
  1. How many children are there?
  2. How many more boys than girls are there?
  3. How many more stickers are given to the girls than the boys?
3 m
Ratio to units Number x value Units table
93 P5.RD.JM.17083143
Level 3
At a wedding function, the ratio of the number of men to the number of women was 13 : 5. If 35% of the women left, what percentage of the men must leave so that there will be an equal number of men and women remaining?
3 m
D division Ratio to units Percent of a set Equal stage after All change Units table Decimal units
94 P5.ST.JC.18121103
Level 2
The ratio of the number of girls to the number of boys is 3 : 5.
Each girl is given 4 stickers.
Each boy is given 2 stickers.
The total number of children is 80.
  1. How many stickers are given to the children?
  2. How many less girls than boys are there?
  3. How many less stickers are given to the boys than the girls?
3 m
Ratio to units Number x value Units table
95 P6.RA.NK.21060202
Level 1 PSLE
Charles has a number of 10¢, 20¢ and 50¢ coins in the ratio 4 : 2 : 1. The total value of all the coins is $156. What is the total value of the 20¢ coins?
3 m
Ratio to units Money Unit conversion Number x value Units table
96 P5.ST.JC.18121104
Level 3
A special tea is a mixture of three kinds of tea leaves A, B and C in the ratio 5 : 3 : 2.
1 kg of each kind of tea leaves costs $4, $20 and $10 respectively.
What is the cost of 15 kg of this special tea?
3 m
Ratio to units Sets Units method
97 P6.RD.TL.16010110
Level 3
The ratio of Henry's total points to that of Vincent's in a mock test was 6 : 7. In the next mock test, Henry's points increased by 70%. By what percentage must Vincent's points be increased if their total points were to be the same? Round off the answer to the nearest whole number.
3 m
W Round off Ratio to units Finding percent Percent change by Percent to units Equal stage after All change Units table Units manipulation
98 P5.ST.JC.18121105
Level 1
Adam has blue and red stickers in the ratio of 5 : 2.
He has 30 more blue stickers than red stickers.
  1. How many stickers does Adam have?
  2. If Adam gives away 10 blue stickers, what is the new ratio of the number of blue stickers to blue stickers?
3 m
Finding ratio R Simplest form Ratio to units More than or less than Unchanged quantity Units method
99 P5.ST.JC.18121106
Level 2
Adam and Bryan have some stickers in the ratio of 3 : 2.
When Adam gives away 40 stickers,
the ratio of the stickers becomes 1 : 3.
  1. How many stickers do they have at first?
  2. How many stickers do they have in the end?
3 m
Ratio to units Unchanged quantity Units table
100 P6.RD.NK.21060209
Level 3 PSLE
On Saturday, the number of adults to boys to girls visiting a zoo was 3 : 6 : 5. On Sunday, the number of adults visiting the zoo remained the same. However, the number of boys increased by 50% and the number of girls decreased by 20%.
  1. What was the ratio of the number of adults to boys to girls visiting the zoo on Sunday?
  2. On Saturday, 572 boys and girls visited the zoo. What was the total number of visitors at the zoo on Sunday?
3 m
Finding ratio Ratio to units Percent change by All change Units table

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