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Practice - Percentages, Ratios and Proportion - 06

Buckle up, young mathematicians! This is not just any quiz; it's a numbers adventure. Ready to dive into the world of percentages, ratios, and proportions? If you are a fan of playing with numbers, then you are going to love solving these mind-boggling problems. So, get your thinking caps on and prove your mathematical prowess. Best of luck!
1.
What's £15 as a percentage of £60?
5%
10%
25%
35%
£15 is one quarter or 25% of £60.
2.
If a bag contains 3 red marbles, 2 blue marbles and 1 green marble, what's the ratio of red to blue to green marbles?
3:2:1
2:3:1
1:2:3
1:3:2
The ratio of red to blue to green marbles is 3:2:1.
3.
Which of these is equivalent to a ratio of 5:15?
3:1
2:1
1:3
1:2
The simplified version of the ratio 5:15 is 1:3.
4.
What is 50100 as a percentage?
5%
50%
500%
0.5%
This is correct because a fraction of 50100 is equivalent to 50% in percentage.
5.
What is 45% of 200?
90
80
85
95
45% of 200 is 90 because 200 x 0.45 = 90.
6.
What is the result when you divide £180 into the ratio 2:3?
£60 and £120
£90 and £90
£72 and £108
£80 and £100
The total of the ratio 2:3 is 5. So, two parts are £(180 ÷ 5) x 2 = £72 and three parts are £(180 ÷ 5) x 3 = £108.
7.
If a bag contains 4 oranges and 6 apples, what is the simplest ratio of oranges to apples?
4:6
2:3
1:2
6:4
When simplified, the ratio 4:6 becomes 2:3.
8.
Which fraction is equal to 25%?
15
14
16
18
25% in fractional form is 14.
9.
If a shirt cost £60 and was reduced by 20%, what is the new price?
£40
£48
£50
£52
A 20% reduction of £60 is £12. So, the new price is £60 - £12 = £48.
10.
A box contains 120 apples. If 15 of them are green, how many green apples are there?
20
24
30
36
15 of 120 apples is 24 because 120 x 15 = 24.
Author:  Graeme Haw

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