Number 1c: Mastery Questions
Guidance Notes - To answer each question, click on the letter that corresponds to the correct answer. You then need to click the 'Check' button to see if you are correct. If your answer is incorrect, you will be given a hint on how to get the correct answer. You then need to click the 'Try again' button to attempt the question once more.
1. Which of these rectangles does not belong in this set of look-alike rectangles?

  A     B     C     D  
     
2. What is the missing length if these two rectangles are in proportion?

  A     B     C     D  
6 m
8 m
12 m
16 m
     
3. Which of these ratios is the odd one out?

  A  
  B  
  C  
  D  
5 : 20
3 : 12
4 : 1
1 : 4
     
4. In this diagram, the original shape is on the left, and the copy is on the right.

What is the ratio of the lengths of the corresponding sides?

  A  
  B  
  C  
  D  
3
1 : 3
3 : 1
1 : 9
     
5. Which of these cards does not belong in the look-alike family?

  A     B     C     D  
     
6. A glass of cordial contains four times as much water as cordial. If Alice uses 40 ml of cordial, how much water should she put in?

  A  
  B  
  C  
  D  
120 ml
140 ml
160 ml
200 ml
    
7. Alice has a box of red and blue beads. The ratio of red beads to blue beads in the box is
1 : 3. If there are 27 blue beads, how many beads are there altogether?

  A  
  B  
  C  
  D  
36
9
27
81
    
8. Krish noticed the ratio of diesel-powered card to petrol powered cards in his street was
1 : 6. If there were 42 cars in Krish's street, how many were petrol-powered?

  A  
  B  
  C  
  D  
6
7
36
42
    
9. Amber made a bucket of purple paint by mixing 1 litre cans of red and blue paint in the ratio of 2 : 3. Which of these quantities of purple paint might she have made?

  A  
   B  
  C  
  D  
16 L
17 L
19 L
20 L
    
10. Mr T uses 90 g of flour for every 20 g of sugar to make a donut. If he has 500 g of flour and 200 g of sugar, how many donuts can he make?

  A  
  B  
  C  
  D  
4
5
6
10
    
For Questions 11 and 12, you will need to answer them using paper and pencil and then click the 'Check' button to see if you have done them correctly.
11. The ratio of boys to girls in the Yr 7 soccer club is 5 : 3. If there are 10 more boys than girls in the soccer club, how many

a) boys and b) girls are in the soccer club     
12. Matthew has a part-time job packing baskets of mixed fruit at a local orchard. He packs pears, apples and plums in the ratio of 1 : 2 : 4. A basket of fruit contains 21 items.

How many apples does Matthew use if he packs 8 baskets in a morning?     
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