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Preparing for the GMAT? Avoid these 5 major mistakes that can lower your score and hurt your MBA dreams. In this expert panel discussion, 4 top GMAT coaches - GMAT Ninja, Jeff Miller from TTP, Rida Shafiq from eGMAT, and Chris Gentry from Manhattan Prep- Mar 27
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We know Strengthen and Weaken questions account for more than 50% of the CR questions on the GMAT. With CR becoming even more important on GMAT Focus, it's time you strengthen your weaknesses with an approach that improves your solving time and accuracy!
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Full-length FE mock with insightful analytics, weakness diagnosis, and video explanations!
13 Sep 2023, 20:53
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This was the question (but does not look to be GMAT since it has 4 answer choices). One third, one fourth, one fifth and one-seventh of the human population of Island X, which has fewer than 5000 human inhabitants, are all whole numbers and their sum is exactly the population of Island Y. What is the population of Island Y? A.4200 B.4279 C.4581 D. None of these Can anyone solve this math in details?
if x is the population of island_X then x < 5000next the fractions are whole numbers
i.e. (1/3)x, (1/4)x, (1/5)x, (1/7)x are whole numbers.
we can take LCM of denominators to say x/420 is a whole number
now say x = 420*T for some whole number T
then; (1/3 * 420*T) + (1/4 * 420*T) + (1/5 * 420*T) + (1/7 * 420*T) = Population of Island_Y
solving this will yield 389*T = Population of Island Y
we can check from answer options which number represents 389*T
B) 4279 = 389 * 11 satisfies the ask
13 Sep 2023, 22:18
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Guys I can’t understand absolute value questions
13 Sep 2023, 22:23
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@dhvanil
ultimate-gmat-quantitative-preparation-guide-244512.html
try this forum
scroll down to absolute value
hope it helps
ultimate-gmat-quantitative-preparation-guide-244512.html
try this forum
scroll down to absolute value
hope it helps
