Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2601:30 AM EDT
-02:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
07 Mar 2026, 01:11
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
74% (02:06) correct
26%
(02:54)
wrong
based on 43
sessions
History
Date
Time
Result
Not Attempted Yet
Vernon’s weight is 30 percent higher than Bernie’s weight, while Tom’s weight is 30 percent lower than Vernon’s weight. Laurie’s weight is the average of the weights of Vernon, Bernie, and Tom. Laurie’s weight is approximately what percent higher than Bernie’s weight?
A. 6%
B. 7%
C. 10%
D. 11%
E. 20%
A. 6%
B. 7%
C. 10%
D. 11%
E. 20%
07 Mar 2026, 01:19
Kudos
Bookmarks
kevincan
Vernon = (13/10) * Bernie
Tom = (7/10) Vernon
Vernon : Bernie = 13:10
Multiply by 10, we get Vernon : Bernie = 130 : 100
Tom : Vernon = 7:10
Multiply by 13, we get Tom : Vernon = 91 : 130
Therefore, the ratio of Vernon : Bernie : Tom = 130: 100 : 91
Laurie = average of all three = (130x+100x+91x)/3 = 107x
Laurie : Bernie = 107x : 100x
Laurie is 7% greater than Bernie.
Option B
07 Mar 2026, 06:56
Kudos
Bookmarks
Key concept being tested: Percent change with chained relationships — where multiple "percent higher/lower" comparisons apply to different base values.
The trap almost everyone falls into: when the problem says "Tom's weight is 30 percent lower than Vernon's weight," many students accidentally calculate 30% lower than Bernie's weight. These are two very different numbers and the slip kills you.
Step 1 — Pick a smart number for Bernie.
Let Bernie = 100. This avoids fractions entirely.
Step 2 — Find Vernon.
Vernon is 30% higher than Bernie: 100 x 1.3 = 130
Step 3 — Find Tom.
Tom is 30% lower than Vernon (not Bernie — this is the trap!):
130 x 0.7 = 91
Step 4 — Find Laurie.
Laurie = average of Vernon, Bernie, and Tom:
(130 + 100 + 91) / 3 = 321 / 3 = 107
Step 5 — Calculate the percent difference vs. Bernie.
Laurie (107) vs. Bernie (100) → Laurie is exactly 7% higher than Bernie.
Answer: B
The answer choices are specifically designed to trap you: 10% appears if you accidentally use Tom = 70 (30% below Bernie instead of Vernon), giving (130+100+70)/3 = 300/3 = 100 — which would mean Laurie equals Bernie. If you get something close to 10% or 11%, you applied the percentage to the wrong base.
Takeaway: Whenever a percent comparison uses the phrase "lower/higher than X," always pause and confirm which person X is before calculating — chained percent problems almost always hide a base-swap somewhere.
— Kavya | 725 (99th percentile), GMAT Focus Edition
The trap almost everyone falls into: when the problem says "Tom's weight is 30 percent lower than Vernon's weight," many students accidentally calculate 30% lower than Bernie's weight. These are two very different numbers and the slip kills you.
Step 1 — Pick a smart number for Bernie.
Let Bernie = 100. This avoids fractions entirely.
Step 2 — Find Vernon.
Vernon is 30% higher than Bernie: 100 x 1.3 = 130
Step 3 — Find Tom.
Tom is 30% lower than Vernon (not Bernie — this is the trap!):
130 x 0.7 = 91
Step 4 — Find Laurie.
Laurie = average of Vernon, Bernie, and Tom:
(130 + 100 + 91) / 3 = 321 / 3 = 107
Step 5 — Calculate the percent difference vs. Bernie.
Laurie (107) vs. Bernie (100) → Laurie is exactly 7% higher than Bernie.
Answer: B
The answer choices are specifically designed to trap you: 10% appears if you accidentally use Tom = 70 (30% below Bernie instead of Vernon), giving (130+100+70)/3 = 300/3 = 100 — which would mean Laurie equals Bernie. If you get something close to 10% or 11%, you applied the percentage to the wrong base.
Takeaway: Whenever a percent comparison uses the phrase "lower/higher than X," always pause and confirm which person X is before calculating — chained percent problems almost always hide a base-swap somewhere.
— Kavya | 725 (99th percentile), GMAT Focus Edition
