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Problem2

by Captchar » Fri Dec 21, 2012 9:41 am
Sorry, there is this other one too. I forgot.

Of the following, which is the best approximation to the square root of 0.0026?
(A) 0.05
(B) 0.06
(C) 0.16
(D) 0.5
(E) 0.6
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by Anurag@Gurome » Fri Dec 21, 2012 9:48 am
Captchar wrote:Of the following, which is the best approximation to the square root of 0.0026?
√0.0026 = √(0.0001*26) = (√0.0001)*√26

Now, √0.0001 = 0.01 and √26 ≈ 5

Hence, √0.0026 ≈ 0.01*5 = 0.05

The correct answer is A.
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