MATH20.docx

1、MATH20Math Section-Q1:If Henry were to add 5 gallons of water to a tank that is already full of water, the tank would be full. How many gallons of water would the tank hold if it were full?A. 25B. 40C. 64D. 80E. 96Answer: - Q2: =A. 8 + 3B. 4 + 3C. 8D. 4E. Answer: -Q3:For all positive integers m and

2、v, the expression m v represents the remainder when m is divided by v. What is the value of ?A. -10B. -2C. 8D. 13E. 17Answer: -Q4:Is the number of members of Club X greater than the number of members of Club Y ?(1) Of the members of Club X, 20 percent are also members of Club Y.(2) Of the members of

3、 Club Y, 30 percent are also members of Club X. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.D. EAC

4、H statement ALONE is sufficient.E. Statements (1) and (2) TOGETHER are NOT sufficient.Answer: -Q5:If k, m, and t are positive integers and + =, do t and 12 have a common factor greater than 1 ?(1) k is a multiple of 3.(2) m is a multiple of 3. A. Statement (1) ALONE is sufficient, but statement (2)

5、alone is not sufficient.B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.D. EACH statement ALONE is sufficient.E. Statements (1) and (2) TOGETHER are NOT sufficient.Answer: -Q6:If wat

6、er is leaking from a certain tank at a constant rate of 1,200 milliliters per hour, how many seconds does it take for 1 milliliter of water to leak from the tank?A. B. C. 2D. 3E. 20Answer: -Q7:On an aerial photograph, the surface of a pond appears as circular region of radius inch. If a distance of

7、1 inch on the photograph corresponds to an actual distance of 2 miles, which of the following is the closest estimate of the actual surface area of the pond, in square miles?A. 1.3B. 2.4C. 3.0D. 3.8E. 5.0Answer: -Q8:How many integers from 0 to 50, inclusive, have a remainder of 1 when divided by 3 ?

8、A. 15B. 16C. 17D. 18E. 19Answer: -Q9:Yesterday Diana spent a total of 240 minutes attending a training class, responding to E-mails, and talking on the phone. If she did no two of these three activities at the same time, how much time did she spend talking on the phone?(1) Yesterday the amount of ti

9、me that Diana spent attending the training class was 90 percent of the amount of time that she spent responding to E-mails.(2) Yesterday the amount of time that Diana spent attending the training class was 60 percent of the total amount of time that she spent responding to E-mails and talking on the

10、 phone. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.D. EACH statement ALONE is sufficient.E. State

11、ments (1) and (2) TOGETHER are NOT sufficient.Answer: -Q10:If x2 + 3x + c = (x + a)(x + b) for all x, what is the value of c ?(1) a = 1(2) b = 2 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.B. Statement (2) ALONE is sufficient, but statement (1) alone is not suffic

12、ient.C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.D. EACH statement ALONE is sufficient.E. Statements (1) and (2) TOGETHER are NOT sufficient.Answer: -Q11:If 36x = 8,100, what is the value of (3x 1)3 ?A. 90B. 30C. 10D. E. Answer: -Q12:What is the cube root of

13、 w ?(1) The 5th root of w is 64.(2) The 15th root of w is 4. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is suff

14、icient.D. EACH statement ALONE is sufficient.E. Statements (1) and (2) TOGETHER are NOT sufficient.Answer: -Q13:Is the number of seconds required to travel d1 feet at r1 feet per second greater than the number of seconds required to travel d2 feet at r2 feet per second?(1) d1 is 30 greater than d2.(

15、2) r1 is 30 greater than r2. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.D. EACH statement ALONE i

16、s sufficient.E. Statements (1) and (2) TOGETHER are NOT sufficient.Answer: -Q14:Six cards numbered from 1 to 6 are placed in an empty bowl. First one card is drawn and then put back into the bowl; then a second card is drawn. If the cards are drawn at random and if the sum of the numbers on the card

17、s is 8, what is the probability that one of the two cards drawn is numbered 5 ?A. B. C. D. E. Answer: -Q15:If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4, x, and x + 3, what is the value of x ?A. 14B. 15C. 16D. 17E. 18Answer: -Q16:If n 0, which is greater, 20 percent of n or 10 percent o

18、f the sum of n and 0.5 ?(1) n 0.01 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.D. EACH statement A

19、LONE is sufficient.E. Statements (1) and (2) TOGETHER are NOT sufficient.Answer: -Q17:How many prime numbers between 1 and 100 are factors of 7,150 ?A. OneB. TwoC. ThreeD. FourE. FiveAnswer: -Q18:Each week, Harry is paid x dollars per hour for the first 30 hours and 1.5x dollars for each additional

20、hour worked that week. Each week, James is paid x dollars per hour for the first 40 hours and 2x dollars for each additional hour worked that week. Last week James worked a total of 41 hours. If Harry and James were paid the same amount last week, how many hours did Harry work last week?A. 35B. 36C.

21、 37D. 38E. 39Answer: -Q19:A certain company that sells only cars and trucks reported that revenues from car sales in 1997 were down 11 percent from 1996 and revenues from truck sales in 1997 were up 7 percent from 1996. If total revenues from car sales and truck sales in 1997 were up 1 percent from

22、1996, what is the ratio of revenue from car sales in 1996 to revenue from truck sales in 1996 ?A. 1 : 2B. 4 : 5C. 1 : 1D. 3 : 2E. 5 : 3Answer: -Q20:What is the ratio of the average (arithmetic mean) height of students in class X to the average height of students in class Y?(1) The average height of

23、the students in class X is 120 centimeters.(2) The average height of the students in class X and class Y combined is 126 centimeters. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.C. BOT

24、H statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.D. EACH statement ALONE is sufficient.E. Statements (1) and (2) TOGETHER are NOT sufficient.Answer: -Q21: k, n, 12, 6, 17What is the value of n in the list above?(1) k n(2) The median of the numbers in the list is 10. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.B. S