The 4 integers j, j, k, and n have an average of 0. Which of the following equations must be true?
(A) k = n
(B) k = -j
(C) k + n = -2j
(D) k + n = 0
(E) k + n = j
Noreen recently took a job helping people register to vote. The job has a mandatory 10-day period of probation during which her success rate is strictly monitored. On her first day, she registered 30 people. Then, for each of the next 9 days, she registered 4 more people than she did on the previous day. How many people did she register altogether during her probationary period?
(F) 300(G) 340(H) 480(J) 560(K) 600
Correct Answer: H
How must - 
, - 
, - 
, and - 
be arranged so that they are listed in increasing order?
（A）- - - -
（B） - - - -
（C） - - - -
（D） - - - -
Correct Answer: A
For each of 3 years, the table below gives the number of different routes a runner ran, the number of runs she ran, and the total number of miles she ran.
To the nearest tenth of a mile, what is the average number of miles the runner ran per run in 2005?
(A) 2.5 (B) 2.6 (C) 3.2 (D) 4.8 (E) 5
Correct Answer: C
More ACT Math Exam Questions
- 1Ding’s Diner advertised this daily lunch special: “Choose 1 item from each column—only $4.95!” Thus, each daily lunch special consists of a salad, a soup, a sandwich, and a drink.
How many different daily lunch specials are possible? - 2
In a certain sequence of numbers, each term after the 1st term is the result of adding 2 to the previous term and multiplying that sum by 3. If the 4th term in the sequence is 186, what is the 2nd term?
- 3
The geometric mean of 3 positive numbers is the cube root of the product of the 3 numbers. What is the geometric mean of 2, 4, and 27?
- 4
The four midpoints of the sides of a square represent four points on a circle. Line segments connect the opposing corners of the square. This circle and these line segments divide the square into how many individual, non-overlapping regions of nonzero area?
- 5
If ppercent of 250 is 75, what is 75% of p?