61 P5.RD.JM.17083218
Level 3
At the school's recent donation drive, for every $1 donated by a child, an adult donated twice the amount. There were 5 times as many children as adults who were at the event. There were 23 times as many girls as boys at the event. Given that a total amount of $1470 was collected during the event, how many girls were at the event?
4 m
F multiplication Fraction to units Money Times as many Combined repeated identity Number x value Units table
62 P4.RD.NK.22120707
Level 3
The mass of a container when it is 17 full is 6.03 kg. The mass of a container when it is half full is 11.53 kg. What is the mass of the container when it is empty??
4 m
Fraction to units D 4 operations Mass Repeated identity Units & parts Elimination
63 P3.RD.JC.19120101
Level 3
There are 634 passengers in Train A. There are twice as many passengers in Train B as in Train A. There are half as many passengers in Train C as in Train A.
  1. How many passengers are there in Train B?
  2. How many passengers are there in the 3 trains altogether?
4 m
W 4 operations Fraction of a set Times as many Repeated identity
64 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
65 P4.RD.JM.17110124
Level 3
There are 100 balls in a bag. 0.25 of them are red balls, and the rest are green and blue balls. If there are 14 as many green balls as blue balls. How many blue balls are there?
4 m
Fraction to units Decimal to units Combined repeated identity Units & parts Substitution
66 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
67 P6.FR.JO.21042221
Level 2 PSLE
Pupils in a school are put into two groups for an excursion. 25 of the pupils are in Group A and the rest in Group B. 14 of the pupils in Group A are boys. In the school, 310 of the pupils are boys. What fraction of the pupils in Group B are boys?
2 m
Fraction of a set Fraction to units Combined repeated identity Unchanged total Units table Units manipulation
68 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
69 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
70 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

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