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ACT数学基础练习题

摘要

1. If Lynn can type a page in p minutes, what piece of the page can she do in 5 minutes?

A. 5/p 
B. p - 5 
C. p + 5 
D. p/5 
E. 1- p + 5

2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

A. 2 hours and 24 minutes 
B. 3 hours and 12 minutes 
C. 3 hours and 44 minutes 
D. 4 hours and 10 minutes 
E. 4 hours and 33 minutes

3. Employees of a discount appliance store receive an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?

A. $280.90 
B. $287 
C. $292.50 
D. $306 
E. $333.89

4. The sales price of a car is $12,590, which is 20% off the original price. What is the original price?

A. $14,310.40 
B. $14,990.90 
C. $15,290.70 
D. $15,737.50 
E. $16,935.80

5. Solve the following equation for A : 2A/3 = 8 + 4A

A. -2.4 
B. 2.4 
C. 1.3 
D. -1.3 
E. 0

6. If Leah is 6 years older than Sue, and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue?

A. 8 
B. 10 
C. 14 
D. 19 
E. 21

7. Alfred wants to invest $4,000 at 6% simple interest rate for 5 years. How much interest will he receive?

A. $240 
B. $480 
C. $720 
D. $960 
E. $1,200

8. Jim is able to sell a hand-carved statue for $670 which was a 35% profit over his cost. How much did the statue originally cost him?

A. $496.30 
B. $512.40 
C. $555.40 
D. $574.90 
E. $588.20

9. The city council has decided to add a 0.3% tax on motel and hotel rooms. If a traveler spends the night in a motel room that costs $55 before taxes, how much will the city receive in taxes from him?

A. 10 cents 
B. 11 cents 
C. 15 cents 
D. 17 cents 
E. 21 cents

10. A student receives his grade report from a local community college, but the GPA is smudged. He took the following classes: a 2 hour credit art, a 3 hour credit history, a 4 hour credit science course, a 3 hour credit mathematics course, and a 1 hour science lab. He received a A in the art class, an B in the history class, a C in the science class, a D in the mathematics class, and an F in the science lab. What was his GPA if the letter grades are based on a 4 point scale? (A=4, B=3, C=2, D=1, F=0)

A. 2.7 
B. 2.8 
C. 3.0 
D. 3.1 
E. 3.2

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