GMAT Prep Quiz 6 2x
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———————————————————————————-REVIEW INSTRUCTIONS——————————————————————————————
Thorough review is critical to the learning process and for most people should take a significant amount of time (and effort!) potentially equally or surpassing the amount of time taken to do the question set.
- Redo questions that you got wrong or struggled on without looking at the answers or explanations. Think. Rethink. Push yourself. Put pen to paper. Don’t review with only your eyes!
- Once you’ve solved or if you aren’t able to solve in about 10 minutes carefully review the explanation (if provided). Again, put pen to paper and redo the question along with the explanation.
- If we haven’t provided an explanation or if our explanation didn’t clear up your doubts google the first few words of the question and confirm the solution on the GMAT forums.
- Except for CR and RC, take a screenshot and add it to your dropbox review folder so you can easily revisit the question when assigned review in your HW schedule.
- Bring questions that you still find difficult to QA or to our sessions. For sessions add the screenshots to the “review in session” folder in your dropbox.
Here’s a video outlining the review process: https://www.youtube.com/edit?o=U&video_id=X6k3niNoGuA
This is a crucial part of the preparation so let’s make sure we get it right. If you have any questions contact andrew@atlanticgmat.com or luciano@atlanticgmat.com.
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- Question 1 of 20
1. Question
The sum of the integers in list S is the same as the sum of the integers in list T. Does S contain more integers than T ?
(1) The average (arithmetic mean) of the integers in S is less than the average of the integers in T.
(2) The median of the integers in S is greater than the median of the integers in T.
CorrectIncorrect - Question 2 of 20
2. Question
Three boxes of supplies have an average (arithmetic mean) weight of 7 kilograms and a median weight of 9 kilograms. What is the maximum possible weight, in kilograms, of the lightest box?
CorrectIncorrect - Question 3 of 20
3. Question
If x is a positive integer, what is the least common multiple of x, 6, and 9 ?
(1) The least common multiple of x and 6 is 30.
(2) The least common multiple of x and 9 is 45.
CorrectIncorrect - Question 4 of 20
4. Question
In a class of 30 students, 2 students did not borrow any books from the library, 12 students each borrowed 1 book, 10 students each borrowed 2 books, and the rest of the students each borrowed at least 3 books. If the average (arithmetic mean) number of books borrowed per student was 2, what is the maximum number of books that any single student could have borrowed?
CorrectIncorrect - Question 5 of 20
5. Question
If $1,000 is deposited in a certain bank account and remains in the account along with any accumulated interest, the dollar
amount of interest, I, earned by the deposit in the first n years is given by the formula \(I = 1000((1 + (r/100))^{n-1})\), where r
percent is the annual interest rate paid by the bank. Is the annual interest rate paid by the bank greater than 8 percent?(1) The deposit earns a total of $210 in interest in the first two years.
(2) \((1+(r/100))^2 > 1.15\)
CorrectIncorrect - Question 6 of 20
6. Question
Each of the 25 balls in a certain box is either red, blue, or white and has a number from 1 to 10 painted on it. If one ball is to be selected at random from the box, what is the probability that the ball selected will either be white or have an even number painted on it?
(1) The probability that the ball will both be white and have an even number painted on it is 0.
(2) The probability that the ball will be white minus the probability that the ball will have an even number painted on it is 0.2.
CorrectIncorrect - Question 7 of 20
7. Question
A basket contains 5 apples, of which 1 is spoiled and the rest are good. If Henry is to select 2 apples from the basket simultaneously and at random, what is the probability that the 2 apples selected will include the spoiled apple?
CorrectIncorrect - Question 8 of 20
8. Question
For which of the following functions f is \(f(x) = f(1 – x)\) for all x?
CorrectIncorrect - Question 9 of 20
9. Question
In the xy-plane, what is the y-intercept of line l?
(1) The slope of line l is 3 times its y-intercept.
(2) The x-intercept of line l is -1/3
CorrectIncorrect - Question 10 of 20
10. Question
Did it take Pei more than 2 hours to walk a distance of 10 miles along a certain trail? (1 mile = 1.6 kilometers, rounded to the nearest tenth.)
(1) Pei walked this distance at an average rate of less than 6.4 kilometers per hour.
(2) On average, it took Pei more than 9 minutes per kilometer to walk this distance.
CorrectIncorrect - Question 11 of 20
11. Question
The perimeter of a certain isosceles right triangle is16+16√2. What is the length of the hypotenuse of the triangle?
CorrectIncorrect - Question 12 of 20
12. Question
To furnish a room in a model home, an interior decorator is to select 2 chairs and 2 tables from a collection of chairs and tables in a warehouse that are all different from each other. If there are 5 chairs in the warehouse and if 150 different combinations are possible, how many tables are in the warehouse?
CorrectIncorrect - Question 13 of 20
13. Question
If a, b, k, and m are positive integers, is \(a^k\) a factor of \(b^m\)?
(1) a is a factor of b.
(2) k ≤ m
CorrectIncorrect - Question 14 of 20
14. Question
If m, r, x, and y are positive, is the ratio of m to r equal to the ratio of x to y ?
(1) The ratio of m to y is equal to the ratio of x to r.
(2) The ratio of m + x to r + y is equal to the ratio of x to y.
CorrectIncorrect - Question 15 of 20
15. Question
In a certain board game, a stack of 48 cards, 8 of which represent shares of stock, are shuffled and then placed face down. If the first 2 cards selected do not represent shares of stock, what is the probability that the third card selected will represent a share of stock?
CorrectIncorrect - Question 16 of 20
16. Question
7.51 8.22 7.86 8.36
8.09 7.83 8.30 8.01
7.73 8.25 7.96 8.53A vending machine is designed to dispense 8 ounces of coffee into a cup. After a test that recorded the number of ounces of coffee in each of 1,000 cups dispensed by the vending machine, the 12 listed amounts, in ounces, were selected from the data. If the 1,000 recorded amounts have a mean of 8.1 ounces and a standard deviation of 0.3 ounce, how many of the 12 listed amounts are within 1.5 standard deviations of the mean?
CorrectIncorrect - Question 17 of 20
17. Question
If the probability that event S will not occur is 1 – y, then the probability that event S will occur is
CorrectIncorrect - Question 18 of 20
18. Question
Each employee on a certain task force is either a manager or a director. What percent of the employees on the task force are directors?
(1) The average (arithmetic mean) salary of the managers on the task force is $5,000 less than the average salary of all employees on the task force.
(2) The average (arithmetic mean) salary of the directors on the task force is $15,000 greater than the average salary of all employees on the task force.
CorrectIncorrect - Question 19 of 20
19. Question
Committee X has 4 members, committee Y has 5 members, and these committees have no members in common. If a task force is to be formed consisting of one member of X and one member of Y, how many different task forces are possible?
CorrectIncorrect - Question 20 of 20
20. Question
In the xy-plane, line k has positive slope and x-intercept 4. If the area of the triangle formed by line k and the two axes is 12, what is the y-intercept of line k ?
CorrectIncorrect