Question 1

A store reduces the price of a jacket by 20% and then increases the new price by 20%. If the original price was $$100$$, what is the final price of the jacket?

Accepted Answer

$$96$$

Question 2

Express $$2.50 as a $$simplified fraction.

Accepted Answer

$$\frac{5}{2}$$

Question 3

A population increased from $$759 to$$ $$1455. $$What is the percentage increase? (Round your answer to the nearest whole number.)

Accepted Answer

$$91.7\%$$

Question 4

Express $$0.25 as a $$percentage.

Accepted Answer

$$25\%$$

Question 5

A survey found that $$4.6\% of$$ $$1392$$ office workers did not make a personal call during work hours. How many workers is this? (Round to the nearest whole number.)

Accepted Answer

$$64$$

Question 6

Express $$30\% as a $$simplified fraction.

Accepted Answer

$$\frac{3}{10}$$

Question 7

A value decreases from $$2214 to$$ $$1455. $$What is the percentage decrease? (Round your answer to the nearest whole number.)

Accepted Answer

$$34\%$$

Question 8

If a number increases from $$1.11 to$$ $$1.79$$, what is the percentage increase? (Round your answer to the nearest whole number.)

Accepted Answer

$$61\%$$

Question 9

Express $$4/5 as a $$percentage.

Accepted Answer

$$80\%$$

Question 10

A store increases the price of a product by $$30\%. If $$the original price was $$100$$, what is the new price?

Accepted Answer

$$130$$

Question 11

Express $$0.3 as a $$percentage.

Accepted Answer

$$30\%$$

Question 12

A value decreases by $$15\%. If $$the original value was $$100$$, what is the new value?

Accepted Answer

$$85$$

Question 13

If a value changes from $$59 to$$ $$39$$, what is the percentage change? (Round your answer to the nearest whole number.)

Accepted Answer

$$-33.9\%$$

Question 14

Express $$2.50 as a $$percentage.

Accepted Answer

$$250\%$$

Question 15

A survey of $$1006$$ people found that $$88\%$$ had made a personal call at work. How many people is this? (Round to the nearest whole number.)

Accepted Answer

$$885$$

Question 16

Express $$0.25 as a $$simplified fraction.

Accepted Answer

$$\frac{1}{4}$$

Question 17

A value increases from $$67 to$$ $$59. $$What is the percentage change? (Round your answer to the nearest whole number.)

Accepted Answer

$$-88\%$$

Question 18

Express $$30\% as a $$decimal.

Accepted Answer

$$0.3$$

Question 19

If a value changes from $$39 to$$ $$59$$, what is the percentage change? (Round your answer to the nearest whole number.)

Accepted Answer

$$51.3\%$$

Question 20

Express $$4/5 as a $$decimal.

Accepted Answer

$$0.8$$

Percentages, Fractions, and Decimals in Statistics: Concepts and Applications

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드