5²¹ * 4¹¹ = 2 * 10^navada wrote:Whats the quickest way to solve this?
5^21x4^11= 2x10^n
answer:21
this is from the Gmac practice test
5²¹ * 4¹¹ = 2 * 2^n * 5^n.
Since the lefthand side has 5²¹, so must the righthand side.
Thus, n=21.
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5²¹ * 4¹¹ = 2 * 2^n * 5^n.
Since the lefthand side has 5²¹, so must the righthand side.
Thus, n=21.
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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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