Ratio Homework
Q1. Jim’s class and Rosie’s class go on a trip to the zoo.Each pupil pays the same amount.
What is the total cost for Rosie’s class?
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Answer £ ......
(3)
Q2. Mohsin invests some money in a cash ISA (c) and in a savings account (s).
The ratio of the amounts of money invested is c : s = 3 : 7
He invests £3600 in the cash ISA.
How much money does he invest altogether?
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Answer £ ......
(2)
Q3. Divide £7200 in the ratio 2 : 3 : 7
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Answer £...... £ ...... £ ......
(3)
Q4. Andy and Trevor share 40 sweets in the ratio 11 : 9
How many more sweets does Andy receive than Trevor?
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Answer ......
(2)
Q5. The sizes of the interior angles of a quadrilateral are in the ratio
3 : 4 : 6 : 7
Calculate the size of the largest angle.
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Answer ......
(3)
6. Write each of these ratios as simply as possible.
a) 2:6 b) 25:100 c) 18:24
d) 1.5 : 2.5 e) 1.5m: 30cm f) 35p : £1.40
7. The table shows the amounts needed to make 36 mince pies.
Ingredient / Amount for 36 pies / Amount for 48 piesPlain Flour / 330 g
Lard / 75 g
Butter / 75 g
Mincemeat / 720 g
Calculate the amounts needed to make 48 mince pies.
Put your answers in the table.
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Total 3 marks)
8. Alex and Ben share £520 in the ratio 1: 3
(a) What fraction of the £520 does Ben receive?
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Answer ......
(1)
(b) How much does Ben receive?
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Answer ......
(2)
9. A packet contains 24 pens.
Henry and Alice share them in the ratio 3 : 5
How many does Alice receive?
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Answer ...... ……………………………
(Total 2 marks)
10. A short necklace has 32 gold beads and 8 black beads.
A long necklace has a total of 60 beads.
Both necklaces have the same ratio of gold beads to black beads.
How many black beads are on the long necklace?
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Answer......
(Total 3 marks)
11. A pile of 20 sheets of card is 1 cm high. How high is a pile of 50 sheets of card?
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Answer ......
(Total 2 marks)