Of the following, the closest approximation to

Question

Of the following, the closest approximation to  \sqrt{\frac{5.98(601.5)}{15.79}}  is

(A) 5
(B) 15
(C) 20
(D) 25
(E) 225

Bunuel · Accepted Answer

SOLUTION

Of the following, the closest approximation to  \sqrt{\frac{5.98(601.5)}{15.79}}  is

(A) 5
(B) 15
(C) 20
(D) 25
(E) 225

\sqrt{\frac{5.98(601.5)}{15.79}}\approx{\sqrt{\frac{6(600)}{16}}}=\sqrt{\frac{3600}{16}}=\frac{60}{4}=15 .

Answer: B.

WoundedTiger · Answer

Sol: We can approximate the following values as below

5.98~6
601.5~600
and 15.79~ 16 so we get  \sqrt{6*600/16}

or \sqrt{3600/16}  or

60/4 = 15 
Ans is B.
600 level is okay

AKG1593 · Answer

Option B.
5.98~6 & 15.79~16
=>(sqrt){6 * (601+0.5)}/16
=>(sqrt)3600/16 = 60/4=15

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djanand · Answer

Lets approximate 5.98 to 6, 601.5 to 600 & 15.79 to 16

so,  \sqrt{\frac{6 * 600}{16}}

\sqrt{\frac{3600}{16}}

\frac{6*10}{4}

15. Option B

Manofsteel · Answer

Pretty Easy
Convert those decimals into integers as below:-
5.98 - 6
601.5 - 600
15.79 - 16

Then just plug in and solve you get 15 as the answer. Option (B)

nutshell · Answer

Approximate the following numbers:
5.98 ~ 6
601.5 ~ 600
15.79 ~ 16

\sqrt{6 * 600} = \sqrt{36 * 100} = 6 * 10
We know that \sqrt{16} = 4;

So, (6 * 10)/4 = 15;

Ans is (B)

RSOHAL · Answer

Using BALLPARKING

5.98 = 6
601.5 = 600
15.79 = 16

6 * 600/16 = 3600/16 sq root = 60/4 = 15

Answer B is correct.

mba2325 · Answer

\sqrt{6 * 600 / 16}
 = \sqrt{3600/16}
 = \sqrt{225} 
 = 15

CyberStein · Answer

Key word in this problem is "approximation"

1. 5.98(601.5) --> approximates --> 6(602) = 3612
2. 3612/16.00 = 225, which is a perfect root
3. √225 = 15

Answer is (B) 15

ScottTargetTestPrep · Answer

We can approximate 5.98 to be 6, 601.5 to be 600, and 15.79 to be 16; thus, we have:

√  = √(3600/16) = 60/4 = 15

Answer: B

Kinshook · Answer

Of the following, the closest approximation to  \sqrt{\frac{5.98(601.5)}{15.79}} = \sqrt{\frac{6*600}{16}}= \sqrt{3*3*5*5} = \sqrt{225}= 15

IMO B

sahuanamika · Answer

Approximation :

5.98~6,601.5~600 and 15.79~ 16 
so we get √6∗600/16
60/4 = 15
Ans is B.

totaltestprepNick · Answer

B https://www.youtube.com/watch?v=v4J67jcQuAc Nick Slavkovich, GMAT/GRE tutor with 20+ years of experience tutoring@totaltestprep.net

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