Which of the following is equal to 1/5 of the reciprocal of 0.004 perc

Question

Which of the following is equal to 1/5 of the reciprocal of 0.004 percent?

A. 0.5
B. 50
C. 500
D. 5,000
E. 50,000

magbot · Answer

reciprocal of 0.004 = Recip(4/1000)
= 1000/4
= 250

1/5th of 250 = 50

Answer: B

DavidTutorexamPAL · Answer

As the calculation we're asked to do is relatively straightforward, we'll just do it.
This is a Precise approach.

1/5 * 1/0.004 = 1/(5*0.004) = 1/0.02 = 50/1 = 50

(B) is our answer.

EgmatQuantExpert · Answer

Solution

To find:  
 • The value of  \frac{1}{5}  of the reciprocal of 0.004 percent

Approach and Working:  
 • The value of 0.004 percent =  \frac{4}{1000}*\frac{1}{100} 
• Reciprocal of the value of 0.004 percent =  \frac{100000}{4}  = 25000
•  \frac{1}{5}  of the value of the reciprocal of the value of 0.004 percent =  25000 * \frac{1}{5} = 5000

Hence, the correct answer is option D.

Answer: D

LevanKhukhunashvili · Answer

Did I miss something?

0.004=4/1000 but 0.004%=4/1000/100

Therefore I came up to answer D
Can someone explain Where I went wrong? I

EgmatQuantExpert · Answer

Hey  LevanKhukhunashvili ,
Your approach is correct.
(4/1000)/100 =  \frac{4}{100000}

Hence, reciprocal =  \frac{100000}{4}  = 25000

\frac{1}{5}  of the reciprocal value =  \frac{1}{5}  * 25000 = 5000

KSBGC · Answer

Note: 0.004 percent

Given,

0.004 %
=0.004 / 100
= 0.00004

0.00004 = 4 / 100000

Reciprocal of 4 / 100000

= 100000 / 4 
=25000

1/5 of 25000
=5000

Thus the best answer is D.

shashankyele · Answer

Bunuel  Is this really a +700 level question?

Bunuel · Answer

The difficulty level of a question is calculated automatically based on the timer stats from the users which attempted the question. So our stats say that it's 700 level.

shashankyele · Answer

Thank you! 
Another question, if i may; So as more people get the correct answer, the difficulty level goes down? And is time taken also factored into the difficulty level?

Bunuel · Answer

________________________
Yes and yes.

shashankyele · Answer

Thanks for the patience and time Bunuel!

Abhishek009 · Answer

\frac{1}{5}*\frac{100000}{4}

= 5000, Answer must be (D)

JeffTargetTestPrep · Answer

1/5 of the reciprocal of 0.004 percent is:

1/5 x 1/(0.004/100) = 1/5 x 100/0.004 = 100/0.02 = 100/(2/100) = 10,000/2 = 5,000

Answer: D

AdityaHongunti · Answer

Bunuel

as the percent of correct attempts increases or decreases decides the difficulty, at what point should one measure the true difficulty of the question? or is it based on one's individual ability?

Bunuel · Answer

The difficulty tag shows the level of the question now. If after some time due to the attempts the difficulty changes the tag will change accordingly.

devlin · Answer

First lets find the reciprocal of 0.004:

1/(0.004/100) = 1/(4/100,000) = 100,000/4

Now lets multiply by 1/5:

1/5 * 100,000/4 = 20,000 / 4 = 5,000

Option D

bumpbot · Answer

Automated notice from GMAT Club BumpBot: 

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

 This post was generated automatically.

Which of the following is equal to 1/5 of the reciprocal of 0.004 perc

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 equal to 1/5 of the reciprocal of 0.004 perc

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