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by regor60 » Mon Sep 25, 2017 10:00 am
Diophantus wrote:Find the angle which is equal to four times its complement
OK

Let X be the angle, therefore, 90-X is its complement

X= 4(90-X)

5X = 360

X=72

Check: complement of 72 degree angle is 18 degrees. Is 4*18 = 72 ? > yes
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by Matt@VeritasPrep » Tue Sep 26, 2017 5:40 pm
Not really a GMAT question though :)
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