The correct answer was E.
Thanks in advance.
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Consecutive Exponents Question
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GMATGuruNY
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E-C = 9¹³ - 9¹¹ = 9¹¹(9² - 1) = 9¹¹(80).
Since D-A = 3 spaces on the number line and E-C = 2 spaces on the number line, we get the following ratio:
(D-A)/(E-C) = 3/2
D-A = (3/2)(E-C).
Thus:
D-A = (3/2)(E-C) = (3/2)(9¹¹)(80) = 120(9¹¹).
The correct answer is E.
Since D-A = 3 spaces on the number line and E-C = 2 spaces on the number line, we get the following ratio:
(D-A)/(E-C) = 3/2
D-A = (3/2)(E-C).
Thus:
D-A = (3/2)(E-C) = (3/2)(9¹¹)(80) = 120(9¹¹).
The correct answer is E.
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Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
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