KS2 Maths Quiz: Exploring Ratios and Comparisons

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Maths Quiz - Ratio (Year 5) (Questions)

In Year 5, the third year in KS2 Maths, you'll learn a cool thing! It's about comparing numbers using ratios. Imagine numbers on either side of a colon, like 2:1 or 3:1 - that's a ratio. It's like saying how things relate to each other.

For example, in a bowl of fruit, there are 8 apples and 6 pears. The ratio of apples to pears is 8:6 (or 4:3, which is the same). Turn it around, and it's the ratio of pears to apples, 6:8 (or 3:4). Ratios help us understand how amounts compare!

Want to be a ratio expert? Take our fun quiz to find out more about ratios in KS2 Maths!

Are Quizzes the Key to Children's Success? Find Out

For every 2 black squares there is 1 white square. What is the ratio of black to white?

[ ]	2:1
[ ]	1:2
[ ]	3:2
[ ]	1:1

If there is a 5:2 ratio between black squares and white squares which number represents the white squares?

[ ]	1
[ ]	2
[ ]	5
[ ]	10

There are 3 yellow boxes for every 1 blue box. If there are 6 yellow boxes how many blue boxes are there?

[ ]	2
[ ]	3
[ ]	6
[ ]	12

The ratio between blue boxes and yellow boxes is 3:2. If there are 4 yellow boxes how many blue boxes are there?

[ ]	2
[ ]	3
[ ]	6
[ ]	10

John has twice as many stamps than Yasif. If Yasif has 5 stamps how many stamps does John have?

[ ]	5
[ ]	10
[ ]	15
[ ]	20

When making a cake, for every 400g of flour 200g of sugar is required. What is another way of saying this?

[ ]	We require half as much flour as sugar
[ ]	We require twice more sugar than flour
[ ]	We require the same amount of sugar and flour
[ ]	We require half as much sugar as flour

In every 10 bricks, 3 are red. We have 30 bricks so how many are red?

[ ]	3
[ ]	6
[ ]	9
[ ]	15

Chicken should be cooked for 50 minutes for every kg. How long will it take to cook a 3kg chicken?

[ ]	100 minutes
[ ]	150 minutes
[ ]	175 minutes
[ ]	200 minutes

Zara uses 20ml of fruit concentrate for every 60ml of water. How much fruit concentrate will she require for 180ml of water?

[ ]	20ml
[ ]	40ml
[ ]	50ml
[ ]	60ml

10.

Lucy mixes 4 small pots of white paint with 1 small pot of red paint to make 1 large tin of pink paint. She requires 5 large tins of pink paint. How many small pots of white paint does she need?

[ ]	5 tins
[ ]	10 tins
[ ]	20 tins
[ ]	30 tins

You can find more about this topic by visiting BBC Bitesize - What is a ratio?

Maths Quiz - Ratio (Year 5) (Answers)

For every 2 black squares there is 1 white square. What is the ratio of black to white?

[x]	2:1
[ ]	1:2
[ ]	3:2
[ ]	1:1

It there is a ratio of 2:1 then there is twice as much of the first thing than the last

If there is a 5:2 ratio between black squares and white squares which number represents the white squares?

[ ]	1
[x]	2
[ ]	5
[ ]	10

The 2 represents the white squares while the 5 represents the black squares as black was mentioned first

There are 3 yellow boxes for every 1 blue box. If there are 6 yellow boxes how many blue boxes are there?

[x]	2
[ ]	3
[ ]	6
[ ]	12

If there are 6 yellow boxes then that is twice the number given in the ratio. Therefore we must multiply the number of blue boxes by 2

The ratio between blue boxes and yellow boxes is 3:2. If there are 4 yellow boxes how many blue boxes are there?

[ ]	2
[ ]	3
[x]	6
[ ]	10

The amount of yellow boxes has been multiplied by 2 so we must multiply the blue boxes by 2

John has twice as many stamps than Yasif. If Yasif has 5 stamps how many stamps does John have?

[ ]	5
[x]	10
[ ]	15
[ ]	20

The ratio between John and Yashif's stamps is 2:1

When making a cake, for every 400g of flour 200g of sugar is required. What is another way of saying this?

[ ]	We require half as much flour as sugar
[ ]	We require twice more sugar than flour
[ ]	We require the same amount of sugar and flour
[x]	We require half as much sugar as flour

The ratio between flour and sugar is 2:1

In every 10 bricks, 3 are red. We have 30 bricks so how many are red?

[ ]	3
[ ]	6
[x]	9
[ ]	15

The number of bricks has been multiplied by 3 so the number of red bricks needs to be multiplied by 3

Chicken should be cooked for 50 minutes for every kg. How long will it take to cook a 3kg chicken?

[ ]	100 minutes
[x]	150 minutes
[ ]	175 minutes
[ ]	200 minutes

Or two and a half hours

Zara uses 20ml of fruit concentrate for every 60ml of water. How much fruit concentrate will she require for 180ml of water?

[ ]	20ml
[ ]	40ml
[ ]	50ml
[x]	60ml

The amount of water has increased 3 times so the same must happen to the amount of fruit concentrate

10.

Lucy mixes 4 small pots of white paint with 1 small pot of red paint to make 1 large tin of pink paint. She requires 5 large tins of pink paint. How many small pots of white paint does she need?

[ ]	5 tins
[ ]	10 tins
[x]	20 tins
[ ]	30 tins

There are 4 pots of white paint in each tin of pink, so 5 tins of pink means 4 x 5 = 20