Grade 3 - Writing and Simplifying Ratio
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1.
Write down the ratio of 350 cm to 25 cm. *
Give your answer in its simplest form.
2 points
2.
Write down the ratio of 220 kg to 5 kg. *
Give your answer in its simplest form.
2 points
3. Alex has 2 20p coins and 3 50p coins.
Write down the ratio of the value of Alex's 20p coins to the value of Alex's 50p coins. *
2 points
4.
(a) Write the ratio 32:24 in its simplest form. *
1 point
(b) Write the ratio of left handed people to right handed people. *
1 point
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5.
(a) Write the ratio 15:35 in its simplest form. *
1 point
(b) Write the ratio of red shapes to blue shapes. *
1 point
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6.
(a) Write down the ratio 81:27 in its simplest form. *
1 point
(b) Write the ratio of white chocolates to milk chocolates. *
1 point
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7.
(a) Write the ratio 24 : 72 in its simplest form. *
1 point
(b) Write the ratio of the days it rained to the number of days it did not rain. *
1 point
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8.
Write the ratio 7.5 : 2.5 in the form n : 1 *
1 point
9.
Write the ratio 12 : 30 in the form 1 : n *
1 point
10. There are some cubes in a bag. 1/6 of the cubes are red. The rest of the cubes are blue.
Write the ratio of the number of red cubes to the number of blue cubes. *
Give your answer in the form of 1 : n
2 points
11. There are only blue counters, red counters and yellow counters in a bag.
There are twice as many blue counters as yellow counters.
There are three times as many red counters as yellow counters.
Write down the ratio of blue counters to red counters to yellow counters? *
2 points
12. There are only green pens, black pens and red pens in a box.
There are four times as many green pens as black pens.
There are twice as many red pens as green pens.
Write down the ratio of green pens to black pens to red pens. *
2 points
13. Charlotte, Jo and Mike played a game.
Charlotte's scored four times as many points as Jo.
Mike's scored half as many points as Charlotte.
Write down the ratio of Charlotte's points to Jo's points to Mike's points. *
2 points
14. There are 120 people in a school canteen. Half of the people in the canteen are in year 11.
The number of year 11 students in the canteen is three times the number of year 10 students.
The rest of the people in the canteen are year 9 students.

The number of year 9 students : the number of year 10 students = n : 1
Work out the value of n *
2 points
15. In a bag, there are blue sweets, red sweets and yellow sweets.
The number of red sweets is three times the number of blue sweets.
The number of yellow sweets is half the number of red sweets.
Write down the ratio of blue sweets to red sweets to yellow sweets. *
Give your answer in the form of a:b:c where a, b and c are whole numbers.
2 points
16. In a bag, there are blue sweets, red sweets and yellow sweets.
The number of blue sweets is four times the number of yellow sweets.
The number of red sweets is half the number of yellow sweets.
Find the percentage of sweets in the bag that are yellow. *
You can use Equatio or give your answer in the form of x/x (fraction)
2 points
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