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 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2301:30 AM EDT
-02:30 AM EDT
Struggling with GMAT Verbal as a non-native speaker? Harsh improved his score from 595 to 695 in just 45 days—and scored a 99 %ile in Verbal (V88)! Learn how smart strategy, clarity, and guided prep helped him gain 100 points.
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 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.
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
67% (01:28) correct
33%
(01:40)
wrong
based on 272
sessions
History
Date
Time
Result
Not Attempted Yet
There are three boxes labelled A, B and C having a total weight of 150 kg. Find the weight of the heaviest box?
1) The sum of the weight of boxes A and B equals twice the weight of box C.
2) The weight of box A equals the sum of the weight of the boxes B and C.
1) The sum of the weight of boxes A and B equals twice the weight of box C.
2) The weight of box A equals the sum of the weight of the boxes B and C.
02 Dec 2018, 23:30
Kudos
Bookmarks
Given A+B+C = 150
From statement 1:
A+B = 2C
3C = 150
C = 50.
Insufficient.
From statement 2:
A = B+C
2A = 150
A = 75.
Now remaining weight = 150-75 = 75 = B+C
Hence A is the heaviest box.
B is the answer.
From statement 1:
A+B = 2C
3C = 150
C = 50.
Insufficient.
From statement 2:
A = B+C
2A = 150
A = 75.
Now remaining weight = 150-75 = 75 = B+C
Hence A is the heaviest box.
B is the answer.
03 Dec 2018, 11:13
Kudos
Bookmarks
aa008
Target question: Find the weight of the heaviest box?
Given: There are three boxes labelled A, B and C having a total weight of 150 kg.
Let A = weight of box A
Let B = weight of box B
Let C = weight of box C
We can write: A + B + C = 150
Statement 1: The sum of the weight of boxes A and B equals twice the weight of box C.
We can write: A + B = 2C
So, we have the following system:
A + B + C = 150
A + B = 2C
Subtract the bottom equation from the top equation to get: C = 150 - 2C
Solve to get C = 50
Notice that box C cannot be the heaviest box, since that would mean A and B are each less than 50, which would make it impossible to have a total weight of 150 pounds.
Since there's no way to find the weight of the heaviest box, statement 1 is NOT SUFFICIENT
If you're not convinced, let's TEST some values
There are several scenarios that satisfy statement 1 (and the equation A + B + C = 150). Here are two:
Case a: A = 10, B = 90 and C = 50. In this case, the answer to the target question is the heaviest box weighs 90 pounds
Case b: A = 30, B = 70 and C = 50. In this case, the answer to the target question is the heaviest box weighs 70 pounds
Since we cannot answer the target question with certainty, statement 1 is NOT SUFFICIENT
Statement 2: The weight of box A equals the sum of the weight of the boxes B and C.
First off, this tells us that box A is the heaviest box.
We can also write: A = B + C
So, we have the following system:
A + B + C = 150
A = B + C
Rewrite as follows:
A + B + C = 150
A - B - C = 0
Add the two equations to get: 2A = 150
Solve: A = 75
Since we already concluded that box A is the heaviest, the answer to the target question is the heaviest box weighs 75 pounds
Since we can answer the target question with certainty, statement 2 is SUFFICIENT
Answer: B
Cheers,
Brent
