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May 0510:00 AM PDT
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GMAT Inequalities is a high-frequency topic in GMAT Quant, but many students struggle because the concepts behave differently from standard algebra. Understanding the right rules, patterns, and edge cases can significantly improve both speed and accuracy.- May 06
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In Episode 3 of our GMAT Ninja Critical Reasoning series, we tackle Discrepancy, Paradox, and Explain an Oddity questions. You know the feeling: the passage gives you two facts that seem completely contradictory.... - May 08
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Join the special YouTube live-stream for selecting the winners of GMAT Club MBA Scholarships sponsored by Juno live. Watch who gets these coveted MBA scholarships offered by GMAT Club and Juno.
31 May 2017, 00:56
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What is the number of multiples of 5 between 5^3 and 5^4,inclusive?
A. 85
B. 97
C. 101
D. 111
E. 123
==> You get(〖5^〗^4-〖5^〗^3)/5+1=(〖5^〗^3 (5-1))/5+1=5^2(4)+1=101. The answer is C.
Answer: C
A. 85
B. 97
C. 101
D. 111
E. 123
==> You get(〖5^〗^4-〖5^〗^3)/5+1=(〖5^〗^3 (5-1))/5+1=5^2(4)+1=101. The answer is C.
Answer: C
01 Jun 2017, 01:16
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Attachment:
5.30.png [ 1.07 KiB | Viewed 2204 times ]
If the distances between two consecutive ticks are the same, what is the value of x?
A. \(4^{11}\)
B. \(2(4^{11})\)
C. \(3(4^{11})\)
D. \(4^{12}\)
E. \(5(4^{11})\)
==> If you set the distance between two consecutive ticks as d, you get
\(d=-2(4^{11})-(-4^{12})=4^{12}-2(4^{11})=(4-2)4^{11}=2(4^{11}).\)
Then, you get \(x=-2(4^{11})+2d=-2(4^{11})+2*2(4^{11})=(-2+4)(4^{11})=2(4^{11}).\)
The answer is B.
Answer: B
02 Jun 2017, 01:17
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How many possible 6-digit codes can be formed from three a’s, two b’s, and one c?
A. 40
B. 50
C. 60
D. 70
E. 80
==> Since it is the number of ways of listing a,a,a,b,b,c, you get \(\frac{6!}{(3!)(2!)(1)}=60\).
The answer is C.
Answer: C
A. 40
B. 50
C. 60
D. 70
E. 80
==> Since it is the number of ways of listing a,a,a,b,b,c, you get \(\frac{6!}{(3!)(2!)(1)}=60\).
The answer is C.
Answer: C
