GMAT Quantum

Boost your GMAT Quant Score

  • Home
  • Study
    • Work Flow
    • GMAT Course
    • OG GMAT Guides
    • Official Resources
    • Strategy
  • Blog
  • About
    • Contact
    • Testimonials
    • About Me
  • Login
You are here: Home / Blog

GMAT Problem Solving Question 30: Triple Venn Diagram

April 19, 2022 Leave a Comment

 
Try the following GMAT Problem Solving question that tests your understanding of how to set up problems best solved using triple Venn diagrams.

Question 30:

Of $28$ students taking at least one subject, the number taking Mathematics and English only equals the number taking Mathematics only. No student takes English only or History only, and six students take Mathematics and History, but no English. The number taking English and History only is five times the number taking all three subjects. If the number taking all three subjects is even and non-zero, the number taking English and Mathematics only is:

  1. $\quad 5$
  2. $\quad 6$
  3. $\quad 7$
  4. $\quad 8$
  5. $\quad 9$

Choice A

Video Explanation

 

Filed Under: GMAT Practice Questions

GMAT Problem Solving Question 29: Percents and Ratios

April 11, 2022 Leave a Comment

 
Try the following GMAT Problem Solving question that tests your understanding of percent changes and ratios.

Question 29:

If $a$ is $40\%$ less than $b$ and $b$ is $25\%$ more than $c$, then what is the ratio of $c$ to $a$?

  1. $\quad 3 \; \textrm{to} \; 4$
  2. $\quad 3 \; \textrm{to} \; 5$
  3. $\quad 4 \; \textrm{to} \; 3$
  4. $\quad 5 \; \textrm{to} \; 3$
  5. $\quad 2 \; \textrm{to} \; 1$

Choice C

Video Explanation

 

Filed Under: GMAT Practice Questions

GMAT Problem Solving Question 28: Functions

March 19, 2022 Leave a Comment

 
The following GMAT Problem Solving question tests your understanding of functions and how to manipulate algebraic expressions.

Question 28:

The function $f(x) = \dfrac{\left(x-\dfrac{1}{x}\right)}{\left(x+\dfrac{1}{x}\right)}$ is defined for all values of $x \neq 0$. Which of the following is equal to $f\left(-\dfrac{1}{x}\right)$?

  1. $\quad -f(x)$
  2. $\quad -f(-x)$
  3. $\quad f(x)$
  4. $\quad -f\left(\dfrac{1}{x}\right)$
  5. $\quad f\left(\dfrac{1}{x}\right)$

Choice A

Video Explanation

 

Filed Under: GMAT Practice Questions

GMAT Data Sufficiency Question 27: Remainders

January 25, 2022 Leave a Comment

 
The following GMAT data sufficiency question tests your understanding of dealing with remainder questions and their formulation in the context of data sufficiency.

Question 27:

Is the positive integer $n$ divisible by $15$ ?

  1. (1) When $n$ is divided by $10$ the remainder is $5$.
  2. (2) When $n$ is divided by $6$ the remainder is $3$.
  1. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  2. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  3. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
  4. EACH statement ALONE is sufficient.
  5. Statements (1) and (2) TOGETHER are NOT sufficient.

Choice C

Video Explanation

 

Filed Under: GMAT Practice Questions

GMAT Data Sufficiency Strategy #1

January 7, 2022 Leave a Comment

 
In this video I discuss one of the GMAT data sufficiency strategy that is helpful in dealing with questions that requires one to simplify algebraic expressions. I also demonstrate the common pitfalls in these types of GMAT data sufficiency questions, and give pointers on how to avoid some of the classic GMAT data sufficiency traps.

 

Filed Under: GMAT Strategy

  • 1
  • 2
  • 3
  • …
  • 9
  • Next Page »
  • Email
  • Facebook
  • Twitter
  • YouTube

[M. Dabral, Quantum Education Inc.]. All rights reserved. GMAT™, GMATPrep™, and GMATFocus™ are the registered trademarks of the Graduate Management Admission Council™. The Graduate Management Admission Council™ does not endorse, nor is it affiliated in any way with the owner or any content of this web site.