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Percentages 3
Find the question about cell phones!

Percentages 3

This Math quiz is called 'Percentages 3' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.

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Don't forget, per cent means per hundred, e.g. 10% = 10100. Suppose you were asked to find 10% of 50, how would you do it? This is how you would do it: 10100 × 50 = (10 × 50) ÷ 100 = 5. It's as simple as that!

1.
What is 62.5% of 12?
75
7.5
0.75
0.075
62.5% of 12 = 62.5100 × 12 = (62.5 × 12) ÷ 100 = 7.5
2.
What is 5.5% of 100?
5.5
55
0.55
0.055
5.5% of 100 = 5.5100 × 100 = (5.5 × 100) ÷ 100 = 5.5. You shouldn't have had to calculate anything in this question because X% of 100 = X for all values of X
3.
What is 25% of 75?
0.1875
1.875
187.5
18.75
25% of 75 = 25100 × 75 = (25 × 75) ÷ 100 = 18.75. DON'T forget: when you divide by 100, move the decimal point two places to the left
4.
Henry is paid £42,400 per annum (per year). If he gets a 3.4% pay increase, how much will he earn now per annum?
£43,841.60
£42,841.60
£40,958.40
£1,441.60
3.4% of £42,400 = 3.4100 × 42,400 = (3.4 × 42,400) ÷ 100 = £1,441.60 BUT this is only the interest. He will now earn £42,400 + £1,441.60 = £43,841.60
5.
What is 40% of 18?
0.0072
0.72
72
7.2
40% of 18 = 40100 × 18 = (40 × 18) ÷ 100 = 7.2
6.
If 70% of the population of a country of 60,000,000 have cell phones, what percentage don't have cell phones?
42%
30%
18%
60%
100% - 70% = 30%. The sum of the various percentages MUST add to 100%
7.
Peter will earn 3.2% interest on £12,500. How much money will he earn in interest?
£40.00
£4.00
£400
£4,000
3.2% of £12,500 = 3.2100 × 12,500 = (3.2 × 12,500) ÷ 100 = £400
8.
If John loses 25% of £900, how much does he lose?
£0.225
£2.25
£22.50
£225.00
25% of £90 = 25100 × 900 = (25 × 900) ÷ 100 = £225
9.
What is 20% of 20% of 500?
100
20
200
2
20% of 500 = 20100 × 500 = (20 × 500) ÷ 100 = 100 AND 20% of 100 = 20100 × 100 = (20 × 100) ÷ 100 = 20. NOTE: 20% of 20% is NOT equal to 40%. The word 'OF' means multiply!
10.
What is 60% of 250?
0.15
1.5
150
15
60% of 250 = 60100 × 250 = (60 × 250) ÷ 100 = 150. DON'T forget: when you divide by 100, move the decimal point two places to the left
Author:  Frank Evans

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