# Percent and ratios: Practice Questions IB-ACIO

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If a discount of 20% off the retail price of a table saves Mark $45, how much did he pay for the table?

$145

$160

$180

$210

$215

Answer: c

A customer pays $1, 100 in state taxes on a newly purchased racing car. What is the value of the racing car if state taxes are 8.9% of the value?

$9.765. 45

$10, 876.90

$12, 359.55

$14, 345.48

$15, 745.45

Answer: c

How many years does Ben need to invest his $3, 000 at 7% to earn $210 in simple interest?

1 year

2 years

3 years

4 years

5 years

Answer: a

Sina's boss state that she will increase Sabrina's salary from $12, 000 to $14, 000 per year if she enrolls in business courses at a local community college. What percent increase in salary will result from Sina taking the business courses?

15%

16.7%

17.2%

85%

117%

Answer: b

35% of what number is 70?

100

110

150

175

200

Answer: e

What number is 5% of 2000?

50

100

150

200

250

Answer: b

What percent of 90 is 27?

15%

20%

30%

33%

41%

Answer: c

Jack works for $15.50 per hour for a health care facility. He is supposed to get a 75 cent per hour raise at one year of service. What will his percent increase in hourly pay be?

2.7%

3.3%

133%

4.8%

105%

Answer: d

If 45 is 120% of a number, what is 80% of the same number?

30

32

36

38

41

Answer: a

How long will Lily have to wait before for her $2, 500 invested at 6% earns $600 in simple interest?

2 years

3 years

4 years

5 years

6 years

Answer: c