Primary 6 Maths Weighted Assessment 2 (WA2) – Test 3

1. (a) Express 12x + 5 + 8x + 3x + 15 in its simplest form. 

Answer: (a) 

(b) Find the value of the expression ^{9q − 8}⁄₅ when q = 25.

Answer: (b)   

📖 REMINDER: Combine like terms for part (a). For part (b), substitute the given value and simplify the expression.

WA2,MGSPS,2024,TestMGSPS,Algebra,Primary 6

2. (a) Express 0.4% as a fraction in its simplest form.

Answer: (a)

(b) 12 : 8 = ? : 18 . What is the missing number in the box?

Answer: (b)

📖 REMINDER: Convert percentage to fraction by dividing by 100. For the ratio, set up equivalent fractions and solve.

WA2,MGSPS,2024,TestMGSPS,Ratio and Percentage,Primary 6

3. A pie chart shows the number of red, yellow, blue, and green marbles in a bag. Half of the marbles are
made up of red and green marbles in the ratio 5 : 3. There are 48 green marbles.
How many blue marbles are there?

Answer:    blue marbles

📖 REMINDER: Find the total red and green marbles using the ratio and green count. 

WA2,MGSPS,2024,TestMGSPS,Ratio and Pie Chart,Primary 6

4. At a school event, the ratio of the number of teachers to the number of students is 3:10.
The ratio of the number of boys to the number of girls among the students is 2:3.
What is the ratio of the number of teachers to the number of boys to the number of girls at the event?

Answer:

📖 REMINDER: Find how the student ratio relates to the total number of students before combining with the teacher ratio.

WA2,MGSPS,2024,TestMGSPS,Ratio,Primary 6

5. Rina bought a bicycle at a 30% discount and saved $45.
What was the price of the bicycle before the discount?

Answer:  $ 

📖 REMINDER: The discount amount is a percentage of the original price.

WA2,MGSPS,2024,TestMGSPS,Percentage,Primary 6

6. Liam spent 25% of his money on a basketball. He spent another $75 on shoes.
In the end, he had 60% of his money left. How much money did Liam have left?

Answer: $ 

📖 REMINDER: Consider the total amount as a whole and use the remaining percentage to find how much the extra spending represents.

WA2,MGSPS,2024,TestMGSPS,Percentage,Primary 6

7. Eva and Finn shared some marbles in the ratio of 2 : 3.
Grace had ⁴⁄₅ the number of marbles that Finn had.
What fraction of the total number of marbles did Finn have?

Answer:

📖 REMINDER: Compare the quantities of all three people using a common unit before finding the required fraction.

WA2,MGSPS,2024,TestMGSPS,Ratio and Fraction,Primary 6

8. (a) Kai bought some blue, orange, and purple marbles.
100 of the marbles were blue. 25% of the marbles were orange.
He bought 50 more purple marbles than orange marbles.
How many orange marbles did Kai buy?

Answer: (a) orange marbles

(b) Kai gave away some of his blue marbles to a friend.
There was a 12% decrease in the number of blue marbles.
How many blue marbles did he give away?

Answer: (b)   blue marbles

📖 REMINDER: Find the total marbles from the given percentages and relationships before solving each part.

WA2,MGSPS,2024,TestMGSPS,Percentage and Algebra,Primary 6

9. The graph represents the number of students who took part in some activities.

Each student chose only one activity. The number of students who chose Soccer was ³⁄₅ of those who chose Tennis.
The ratio of those who chose Running to that of Gymnastics was 4 : 3.
The number of students who chose Running and Gymnastics formed 60% of all the students.
The information is also represented in a pie chart. The names of the activities are represented by the labels A, B, C and D.

(a) Select the correct labels A, B, C and D to each sport activity.

A = SoccerTennisRunningGymnastics

B = TennisRunningSoccerGymnastics

C = SoccerTennisGymnasticsRunning

D = TennisRunningSoccerGymnastics

(b) How many students were there altogether?

Answer:  (b)   students

📖 REMINDER: Use the given ratios and percentages to find the actual numbers before matching to the pie chart.

WA2,MGSPS,2024,TestMGSPS,Ratio Percentage Graph,Primary 6

10. A sports store tracks sales of three items: Soccer balls, Tennis rackets, and Basketballs.
The total sales for the month were 555 items. The ratio of Soccer balls sold to Tennis rackets sold was 5:4.
The ratio of Tennis rackets sold to Basketballs sold was 6:5. How many Basketballs were sold?

Answer:

📖 REMINDER: Find the combined ratio of all three items first, then use the total to find each quantity.

WA2,MGSPS,2024,TestMGSPS,Ratio and Proportion,Primary 6