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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
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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
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LevanKhukhunashvili
Did I miss something?

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

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

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
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Bunuel
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


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.
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Bunuel Is this really a +700 level question?
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shashankyele
Bunuel Is this really a +700 level question?

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.
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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?
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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?
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Yes and yes.
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Thanks for the patience and time Bunuel!
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Bunuel
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
\(\frac{1}{5}*\frac{100000}{4}\)

= 5000, Answer must be (D)
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Bunuel
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


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
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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?
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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?

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.
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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
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