1.
Sarah's bank account increased by 54%. If the bank account was $600, it is now worth:
Correct Answer
A. $924
Explanation
If Sarah's bank account increased by 54%, it means that it grew to 154% of its original value. To find the new worth of the bank account, we can multiply the original value ($600) by 154% (1.54). This calculation gives us $924, which is the correct answer.
2.
What is 5% as a decimal?
Correct Answer
D. 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.
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?
Correct Answer
B. 301928
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.
4.
What is 12.3 as a percentage?
Correct Answer
A. 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%.
5.
16% of people have red hair. In a group of 300 people, how many would have red hair?
Correct Answer
C. 48
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.
6.
What is 9% of 61?
Correct Answer
D. 5.49
Explanation
To find 9% of 61, we can multiply 61 by 0.09. This gives us 5.49, which is the correct answer.
7.
Julie got 98 out of 140 for a science exam. What percentage did she get?
Correct Answer
B. 70%
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.
8.
5 out of 8 students attended the Meeting. What percentage is this?
Correct Answer
D. 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%.
9.
Jordan lost 30% of his marbles. What is this as a Fraction in its simplest form?
Correct Answer
B. 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.
10.
What is 6.5% as a fraction, in its simplest form?
Correct Answer
B. 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.