ACT考试不容忽视的数学练习题

100留学小编了解，数学一直是中国考生的优势科目，但是要想取得一个满意的考试分数，考生万万不可轻视ACT考试数学的备考，在备考ACT考试的过程中，ACT考试练习题的训练是必不可少的，数学部分虽然对中国考生来说难度不大，但是考生进行适当的练习还是必不可少的，下面ACT考试网就给考生分享十道ACT数学练习题。

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?

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 揃?in the art class, an 揂?in the history class, a 揅?in the science class, a 揃?in the mathematics class, and an揂?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