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 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.
29 Apr 2016, 04:02
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
58% (01:35) correct
42%
(01:58)
wrong
based on 121
sessions
History
Date
Time
Result
Not Attempted Yet
29 Apr 2016, 05:52
Kudos
Bookmarks
Is a^3 + b^5 > c^4?
(1) a < b < c
Scenario 1: let a=1/2, b=1 and c=2
-----------> (1/2)^3 + (1^5 > 2^4
-----------> 1/8 + 1 > 16 FALSE
Scenario 2: let a=2, b=3 and c=4
-----------> 2^3 + 3^5 > 4^4
-----------> 1944 > 256 TRUE
Statement 1 alone is not sufficient (cross out A and D)
(2) b < 0
The only thin we can conclude from this statement is that b^5 is negative since the -ve number b is raised to an odd exponent 5.
No info about a or c
Statement 2 alone is not sufficient (cross out B as well A and D)
Both statements together:
-----------> b<0 => a<0 and c>0
-----------> for any values of a and b, the a^3 + b^5 is -ve becuase both a and b are -ve numbers raised to odd exponents
-----------> c>0 so c^4 is positive
The final answer a^3 + b^5 IS NOT LESS THAN c^4
====> the answer is "C"
(1) a < b < c
Scenario 1: let a=1/2, b=1 and c=2
-----------> (1/2)^3 + (1^5 > 2^4
-----------> 1/8 + 1 > 16 FALSE
Scenario 2: let a=2, b=3 and c=4
-----------> 2^3 + 3^5 > 4^4
-----------> 1944 > 256 TRUE
Statement 1 alone is not sufficient (cross out A and D)
(2) b < 0
The only thin we can conclude from this statement is that b^5 is negative since the -ve number b is raised to an odd exponent 5.
No info about a or c
Statement 2 alone is not sufficient (cross out B as well A and D)
Both statements together:
-----------> b<0 => a<0 and c>0
-----------> for any values of a and b, the a^3 + b^5 is -ve becuase both a and b are -ve numbers raised to odd exponents
-----------> c>0 so c^4 is positive
The final answer a^3 + b^5 IS NOT LESS THAN c^4
====> the answer is "C"
nipunjain14
Joined: 07 May 2015
Last visit: 12 Aug 2017
Posts: 150
Own Kudos:
Given Kudos: 21
Location: India
Schools: ISB '19 Kellogg '20 Yale '20 HEC Dec"18
GMAT 1: 660 Q48 V31
GPA: 3
29 Apr 2016, 12:13
Kudos
Bookmarks
deabas
2^3 + 3^5 > 4^4 = 8+243>256 = > 251>256 False
