Which of the following is closest to √0.08?

Question

Which of the following is closest to  √0.08 ?
 
A. 0.03 
B. 0.04 
C. 0.3 
D. 0.8 
E. 0.9

BrentGMATPrepNow · Accepted Answer

We can use the rule √(a/b) = (√a)/(√b)

√0.08 = √(8/100)
= (√8)/(√100)
≈ (√9)/(√100)
≈ 3/10
≈ 0.3

Cheers,
Brent

chetan2u · Answer

\sqrt{0.08}=\sqrt{\frac{8}{100}}=\sqrt{4}*\sqrt{2}*\sqrt{\frac{1}{100}}=2*1.4*\frac{1}{10}=0.28~~0.3 
~0.3
C

sb0541 · Answer

√0.08  can be written as  4^\frac{1}{2} * 2^\frac{1}{2} * 10^\frac{-2}{2} 
= 2* 1.41 * 10^\frac{-1}{1} 
= 0.2 * 1.41 
= 0. 282
=~ 0.3
Answer is C .

NandishSS · Answer

Split  √0.08  =\sqrt{8}/\sqrt{100}
=As \sqrt{9}≈3
\sqrt{8}=2.82≈3
==>\sqrt{8}/\sqrt{100}==>.3

MathRevolution · Answer

You get  √0.08=about √0.09=√0.3^2=0.3 , so the answer is C.

Answer: C

JeffTargetTestPrep · Answer

We can simplify the given expression:

√0.08 = √(8/100) = √8/√100 = √8/10

√8 ≈ 2.8, so √8/10 ≈ 2.8/10 ≈ 0.3

Alternate Solution:

We can approximate √0.08 with √0.09. Testing the answer choices, we see that 0.3 is the only choice even remotely close, because 0.3^2 = 0.09.

Answer: C

aishu0091 · Answer

This is such a brilliant solution. It might be common sense to most but I did not think about it in such a sense. This gave me a new perspective of looking at questions.

nammolestias · Answer

=\sqrt{}(8/100)=\sqrt{}(9/100)=0.3

Which of the following is closest to √0.08?

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards

GMAT Problem Solving (PS) Questions

Which of the following is closest to √0.08?

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards