## Official Quant Prep Group

### Brief

Discuss your test-specific queries related to the QUANT section.

### Description

The quantitative section on standardized tests is known to be particularly difficult to crack. It is thus imperative that test-takers warm up to numbers and become thoroughly comfortable with the key mathematical concepts that are tested and assessed on test day. The key lies in knowing that it isn’t the concept-building that is difficult, but rather the way that the concepts are presented within the timed framework that appears demanding. It is actually quite easy to do well on this section with regular math practice and discussion sessions, and this group is your resource to do just that.

Your active participation on this group will allow you to uncover a variety of test-prep related quant material that will help you acclimatize to typical quant questions you will see on test day. Here’s your chance to ask and answer questions, discuss those answers and more.

As an additional resource, “Rapid Maths: Important Examples”, is going to be your gateway to sample Q/A’s and quick math hacks that will support your quant prep and boost your score.

### Discussion

• 2017-06-21 Maria Camila Lara Cuervo

Hello everyone, I'm new at this. I've revised all the comments and apparently there is no an active discussion since 6 months ago approximately. Could you please tell me how is the dynamic of the group? this works only on Mondays? there's an instructor that posts quant exercises? Thanks in advance for your reply

привет

• 2017-05-16 Praveen Kumar Jha

hello

• 2017-04-05 Vishal Gupta

helllo

• 2017-02-17 kumar2112

gsd

• 2017-02-17 kumar2112

test

• 2017-01-23 Himanshu Math Tutor

Hi John,
sorry for the late reply.

• 2017-01-08 John uja

THERE COMING UP FEBRUARY 2018

• 2017-01-08 John uja

AS MY SAT AND TOFEL EXAMS ARE COMING UP VERY SOON

• 2017-01-08 John uja

NEED SERIOUS HELP IN MATHS
I

• 2017-01-08 John uja

HI IS THIS QUESTION AND ANSWER FORUM EVERY MONDAY?

• 2016-12-23 Shreya Chandwadkar

Hello!
Can i post my doubts here?

• 2016-12-21 John uja

WHERE ARE THE OPTIONS

• 2016-12-13 Vengatesh Vishy

27.

• 2016-12-13 tavona.davis@bison.howard.edu

Q1: x=-1, 7
Q2: x=4/7,-10/7
Q3: x=-1, 1
Q4:x=-2, 0 (?)
Q5: x=-3, -1, 1,3
Bonus: x=-1, 0, 1, 4

• 2016-12-12 Ty

just made an attempt but not sure;
question 1.x=22/6
question 2.x=3
question 3.x=1
question 4.x=square root of -1
...that is all i can try for now!

• 2016-12-12 davidlgomez

I had forgot how to solve absolute value equations. This was a good exercise. Thanks!

Question 1:x=-1, 5
Question 2:x=-10, 4/7
Question 3:x=-5/3, 1/3
Question 4:x=-1,1
Question 5:x=-1, 0, 4

• 2016-12-12 Bruno Sanfins MBAprep

Hi! What if we try some absolute value problems? I'll post questions with different levels of difficulty! Always remember: if you let me know how you thought, I'll be able to give you a better feedback. (Note: this time we won't have answer choices, just give me the numbers).

Solve for x:

Question 01: |3x-1| = |2x+6|
Question 02: |4x+3| = -3x+7
Question 03: |x+1| + |2x-1| = 3
Question 04: |2x+1| = x-1
Question 05: |x|^2 + 2|x| - 3 = 0

BONUS: |x^2 - x - 2| = 2+2x

• 2016-12-05 sahuamit91

C.

• 2016-12-05 sahuamit91

E.

• 2016-12-05 sahuamit91

C.

• 2016-12-02 Aniqah

C.

• 2016-12-01 Bruno Sanfins MBAprep

Huh... I'll save this one for a next time!

• 2016-12-01 Bruno Sanfins MBAprep

Nice job!

• 2016-12-01 Bruno Sanfins MBAprep

To answer the question, it is enough to determine what percent of the students in the school are enrolled in either an art class or a music class. We know that 10% are enrolled in music and 15% are enrolled in art, and if x% are enrolled in both, 25 –x % are enrolled in either, and thus 75 + x % are enrolled in neither.
(1) 2/3 of the 15% enrolled in music comprise those students who are enrolled in both. SUFF
(2) N.S.

• 2016-12-01 Bruno Sanfins MBAprep

Yes!

• 2016-12-01 Bruno Sanfins MBAprep

Nice!

• 2016-12-01 Bruno Sanfins MBAprep

=)

• 2016-11-29 Pankaj Choubey

C.

• 2016-11-29 Pankaj Choubey

E.

• 2016-11-29 Pankaj Choubey

C.

• 2016-11-29 manishswami93

C.

• 2016-11-28 Himanshu Math Tutor

Hi Frank,

• 2016-11-28 Bruno Sanfins MBAprep

Hello, everyone! For today's Math Monday, let's practice some "Sets" problems. Good studies!

• 2016-11-28 Bruno Sanfins MBAprep

Of the 75 houses in a certain community, 48 have a patio. How many of the houses in the community have a swimming pool?

(1) 38 of the houses in the community have a patio but do not have a swimming pool.
(2) The number of houses in the community that have a patio and a swimming pool is equal to the number of houses in the community that have neither a patio nor a swimming pool.

• 2016-11-28 Bruno Sanfins MBAprep

Of the 25 cars sold at a certain dealership yesterday, some had automatic transmission and some had anti-lock brakes. How many of the cars had a automatic transmission but not antilock brakes?

(1) All of the cars that had anti-lock brakes also had an automatic transmission.
(2) 2 of the cars had neither automatic transmission nor anti-lock brakes.

• 2016-11-28 Bruno Sanfins MBAprep

Of the students in a certain school, 15 percent are enrolled in an art class and 10 percent are enrolled in a music class. What percent of the students in the school are enrolled in neither an art class nor a music class?
(1) 2/3 of the students who are enrolled in an art class are also enrolled in a music class.
(2) There are more than 100 students in the school.

• 2016-11-28 Bruno Sanfins MBAprep

Of the 200 members of a certain association, each member who speaks German also speaks English, and 70 of the members speak only Spanish. If no member speaks all three languages, how many of the members speak two of the three languages?
(1) 60 of the members speak only English
(2) 20 of the members do not speak any of the three languages.

• 2016-11-28 Bruno Sanfins MBAprep

Set A, B, C have some elements in common. If 16 elements are in both A and B, 17 elements are in both A and C, and 18 elements are in both B and C, how many elements do all three of the sets A, B, and C have in common?

(1) Of the 16 elements that are in both A and B, 9 elements are also in C.
(2) A has 25 elements, B has 30 elements, and C has 35 elements.

• 2016-11-25 Frank Boateng Appiah

Hi , Can someone help wiyh more of the word problem questions

• 2016-11-17 Bhuvan Bhaskar Dev

D.

• 2016-11-17 Bhuvan Bhaskar Dev

Bruno, can you give an example for each scenario?

• 2016-11-15 Bruno Sanfins MBAprep

Everyone got this one! Nice! =)

• 2016-11-15 Bruno Sanfins MBAprep

Perfect!

• 2016-11-15 Bruno Sanfins MBAprep

If we consider values between 0 and 1, we might have all three conditions! So, (E)

• 2016-11-15 Bruno Sanfins MBAprep

Let's check... if we expand, we would have:

(x^2+2xy+y^2)/(x^2-2xy+y^2).
Using (1) with question: (3xy + 2xy)/(3xy-2xy) = 5 (suff)
Using (2) with quesiton (x^2 + y^2 + 6)/(x^2 + y^2 - 6) ... ? (NSuff)

• 2016-11-15 Bruno Sanfins MBAprep

If x^2/|x| <1, then -1 < x < 1. So, both statements together. (C)

• 2016-11-15 vivian nwagbo

B.

• 2016-11-15 Comfort Onyaga Ogon

If 60 percent of 200 =120 (teachers attended) how possible is it the the remaining 40 percent =72? Can someone explain why the answer is C.? Thanks

• 2016-11-15 Comfort Onyaga Ogon

A.

• 2016-11-15 Comfort Onyaga Ogon

D.

• 2016-11-15 Comfort Onyaga Ogon

E.

• 2016-11-14 Ryan Penaflor

2!

• 2016-11-14 rossy_coutinho

The answer is E

• 2016-11-14 rossy_coutinho

The answer is B.

• 2016-11-14 Shiro Taniguchi

1!

• 2016-11-14 Shiro Taniguchi

B!

• 2016-11-13 Victormore Ogunnowo

C.

• 2016-11-13 Victormore Ogunnowo

B.

• 2016-11-13 Victormore Ogunnowo

D..

• 2016-11-13 Victormore Ogunnowo

D.

• 2016-11-13 Victormore Ogunnowo

A.

• 2016-11-13 Victormore Ogunnowo

The answer is B

• 2016-11-13 Bruno Sanfins MBAprep

Hello, everyone! For today's Math Monday, let's try some "exponent" problems. Have fun! =)

• 2016-11-13 Bruno Sanfins MBAprep

If x < 0, y > 0, and z < 0, which of the following is negative?

(A) x(y^2) z
(B) (x^2) yz
(C) x^2 y z^2
(D) x^3 yz
(E) x^3 y z^3

• 2016-11-13 Bruno Sanfins MBAprep

If xy < 0, which of the following must be negative?

(A) xy^2
(B) x^2y
(C) x^2y^2
(D) x^2y^3
(E) x^3y^3

• 2016-11-13 Bruno Sanfins MBAprep

If x > y^2 > z^4, which of the following statements could be true?

I. x > y > z
II. z > y > x
III. x > z > y

(A) I only
(B) I & II
(C) I & III
(D) II & III
(E) I, II, & III

• 2016-11-13 Bruno Sanfins MBAprep

If 0 < x < y, what is the value of (x+y)^2/(x-y)^2

(1) x^2 + y^2 = 3xy
(2) xy = 3

• 2016-11-13 Bruno Sanfins MBAprep

If x ≠ 0, is x^2/|x| < 1 ?

(1) x < 1
(2) x > −1

• 2016-11-13 rob3

B.

• 2016-11-13 rob3

C.

• 2016-11-13 rob3

A.

• 2016-11-13 rob3

D.

• 2016-11-09 vivian nwagbo

B.

• 2016-11-09 vivian nwagbo

C.

• 2016-11-09 vivian nwagbo

A.

• 2016-11-09 vivian nwagbo

E.

• 2016-11-09 vivian nwagbo

D.

• 2016-11-08 Barbaraelorm

B.

• 2016-11-08 Barbaraelorm

C.

• 2016-11-08 Barbaraelorm

A.

• 2016-11-08 Barbaraelorm

C.

• 2016-11-08 Barbaraelorm

A.

• 2016-11-07 Danone

D.

• 2016-11-07 Danone

D.

• 2016-11-07 sahnil

E.

• 2016-11-07 sahnil

D.

• 2016-11-07 purna3091

B.

• 2016-11-07 purna3091

C.

• 2016-11-07 purna3091

A.

• 2016-11-07 purna3091

E.

• 2016-11-07 purna3091

D.

• 2016-11-07 manishswami93

D.

• 2016-11-07 manishswami93

C.

• 2016-11-07 manishswami93

A.

• 2016-11-07 manishswami93

E.

• 2016-11-07 manishswami93

B.

• 2016-11-07 Arun Jagannathan

Hi guys, welcome to Math Mondays! This week, let's have fun with PERCENTAGES.

• 2016-11-07 Arun Jagannathan

1).Of the 1,000 companies responding to a certain survey, what percent indicated that they had a business recovery plan?
I. 200 of the companies did not indicate that they had a business recovery plan.
II. The number of companies that indicated that they had a business recovery plan was 4 times the number that did not indicate that they had a business recovery plan.

A. Statement I ALONE is sufficient, but statement II alone is not sufficient to answer the question asked.
B. Statement II ALONE is sufficient, but statement I alone is not sufficient to answer the question asked.
C. BOTH statements I and II, TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D. EACH statement ALONE is sufficient to answer the question asked.
E. Statements I and II TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed

• 2016-11-07 Arun Jagannathan

2). Martha bought an armchair and a coffee table at an action and sold both items at her store. Her gross profit from the purchase and sale of the armchair was what percentage greater than her gross profit from the purchase and sale of the coffee table?
I. Martha paid 10% more for armchair than for the coffee table.
II. Martha sold the armchair for 20% more than she sold the coffee table.

A. Statement I ALONE is sufficient, but statement II alone is not sufficient to answer the question asked.
B. Statement II ALONE is sufficient, but statement I alone is not sufficient to answer the question asked.
C. BOTH statements I and II, TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D. EACH statement ALONE is sufficient to answer the question asked.
E. Statements I and II TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed

June 15, 2017

June 15, 2017

June 10, 2017

April 17, 2017

March 30, 2017