Percentage Quiz For Class 8

1) 16% of people have red hair. In a group of 300 people, how many would have red hair?

16

32

48

64

Based on the given information, it is stated that 16% of people have red hair. To find out how many people in a group of 300 would have red hair, we need to calculate 16% of 300. To do this, we multiply 300 by 16/100, which equals 48. Therefore, in a group of 300 people, 48 would have red hair.

Explanation

Based on the given information, it is stated that 16% of people have red hair. To find out how many people in a group of 300 would have red hair, we need to calculate 16% of 300. To do this, we multiply 300 by 16/100, which equals 48. Therefore, in a group of 300 people, 48 would have red hair.

2) What is 5% as a decimal?

0.5

5

0.005

0.05

The correct answer is 0.05 because to convert a percentage to a decimal, you divide it by 100. So, 5% divided by 100 equals 0.05.

Explanation

The correct answer is 0.05 because to convert a percentage to a decimal, you divide it by 100. So, 5% divided by 100 equals 0.05.

3) What is 9% of 61?

54.9

9.31

4.96

5.49

To find 9% of 61, we can multiply 61 by 0.09. This gives us 5.49, which is the correct answer.

Explanation

To find 9% of 61, we can multiply 61 by 0.09. This gives us 5.49, which is the correct answer.

4) 5 out of 8 students attended the Meeting. What percentage is this?

1.6%

160%

72%

62.5%

The correct answer is 62.5%. To find the percentage, we divide the number of students who attended the meeting (5) by the total number of students (8) and multiply by 100. This gives us (5/8) * 100 = 62.5%.

Explanation

The correct answer is 62.5%. To find the percentage, we divide the number of students who attended the meeting (5) by the total number of students (8) and multiply by 100. This gives us (5/8) * 100 = 62.5%.

5) Julie got 98 out of 140 for a science exam. What percentage did she get?

98%

70%

68%

78%

To find the percentage, we need to divide the score obtained (98) by the total possible score (140) and then multiply by 100. So, (98/140) * 100 = 70%. Therefore, Julie got 70% on the science exam.

Explanation

To find the percentage, we need to divide the score obtained (98) by the total possible score (140) and then multiply by 100. So, (98/140) * 100 = 70%. Therefore, Julie got 70% on the science exam.

6) Sarah's bank account increased by 54%. If the bank account was $600, it is now worth:

$924

$324

$276

$876

To find the new worth of Sarah's bank account after a 54% increase, first calculate the amount of the increase: 54/100 * $600 = $324. Then add this increase to the original amount: $600 + $324 = $924. Therefore, Sarah's bank account is now worth $924.

Explanation

To find the new worth of Sarah's bank account after a 54% increase, first calculate the amount of the increase: 54/100 * $600 = $324. Then add this increase to the original amount: $600 + $324 = $924. Therefore, Sarah's bank account is now worth $924.

7) There are 321,200 people who played tennis last year, this year the number of players has decreased by 6%. How many people played tennis this year?

128,480

301928

340,472

308,352

The number of people who played tennis last year was 321,200. This year, the number of players has decreased by 6%. To find out how many people played tennis this year, we need to calculate 6% of 321,200 and subtract it from the original number. 6% of 321,200 is 19,272. Subtracting this from 321,200 gives us 301,928. Therefore, the correct answer is 301,928.

Explanation

The number of people who played tennis last year was 321,200. This year, the number of players has decreased by 6%. To find out how many people played tennis this year, we need to calculate 6% of 321,200 and subtract it from the original number. 6% of 321,200 is 19,272. Subtracting this from 321,200 gives us 301,928. Therefore, the correct answer is 301,928.

8) Jordan lost 30% of his marbles. What is this as a Fraction in its simplest form?

30 / 100

3 / 10

30 / 1000

3 / 100

Jordan lost 30% of his marbles. To express this as a fraction in its simplest form, we can convert the percentage to a fraction by dividing it by 100. Therefore, 30 / 100 simplifies to 3 / 10.

Explanation

Jordan lost 30% of his marbles. To express this as a fraction in its simplest form, we can convert the percentage to a fraction by dividing it by 100. Therefore, 30 / 100 simplifies to 3 / 10.

9) What is 12.3 as a percentage?

1230%

12.3%

1.23%

123%

The correct answer is 1230%. To convert a decimal to a percentage, we multiply it by 100. In this case, 12.3 multiplied by 100 equals 1230%.

Explanation

The correct answer is 1230%. To convert a decimal to a percentage, we multiply it by 100. In this case, 12.3 multiplied by 100 equals 1230%.

10) What is 6.5% as a fraction, in its simplest form?

6.5 / 100

13 / 200

0.65 / 10

65 / 200

To convert a percentage to a fraction, we divide the percentage by 100. In this case, we divide 6.5 by 100, which gives us 0.065. To simplify the fraction, we multiply both the numerator and denominator by 10, resulting in 0.65 / 10. However, to express the fraction in its simplest form, we divide both the numerator and denominator by their greatest common divisor, which is 5. This gives us the final answer of 13 / 200.

Explanation

To convert a percentage to a fraction, we divide the percentage by 100. In this case, we divide 6.5 by 100, which gives us 0.065. To simplify the fraction, we multiply both the numerator and denominator by 10, resulting in 0.65 / 10. However, to express the fraction in its simplest form, we divide both the numerator and denominator by their greatest common divisor, which is 5. This gives us the final answer of 13 / 200.