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Which of the following is 850 percent greater than

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Which of the following is 850 percent greater than [#permalink] New post 13 Oct 2017, 02:03
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Which of the following is 850 percent greater than \(8 * 10^3\) ?

A. \(8.5*10^3\)

B. \(6.4*10^4\)

C. \(6.8*10^4\)

D. \(7.6*10^4\)

E. \(1.6*10^5\)
[Reveal] Spoiler: OA

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Re: Which of the following is 850 percent greater than [#permalink] New post 13 Oct 2017, 05:02
Answer is C

850/100 * 8*1000
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Re: Which of the following is 850 percent greater than [#permalink] New post 15 Oct 2017, 02:32
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Rajneesh Garg wrote:
Answer is C

850/100 * 8*1000


Wrong. Answer is D!

You have to pay attention when computing an increase by a certain percentage. In this case, the formula for the words in the question is

\((1+8.5)*8*10^3 = 9.5*8*10^3 = 76*10^3 = 7.6*10^4\)
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Re: Which of the following is 850 percent greater than [#permalink] New post 12 Dec 2017, 02:31
IlCreatore wrote:
Rajneesh Garg wrote:
Answer is C

850/100 * 8*1000


Wrong. Answer is D!

You have to pay attention when computing an increase by a certain percentage. In this case, the formula for the words in the question is

\((1+8.5)*8*10^3 = 9.5*8*10^3 = 76*10^3 = 7.6*10^4\)



Admin please you should eliminate the wrong explanations as they confuse the readers. Ranjeesh has corrected the answer, but yet the wrong one appears before Ranjeesh's answer
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Re: Which of the following is 850 percent greater than [#permalink] New post 12 Dec 2017, 02:33
Rajneesh Garg wrote:
Answer is C

850/100 * 8*1000



Admin please remove this answer.

(850/100) * 8*10^3 just calculates 850% of the given quantity. while the question is asking about which quantity is this much greater than the original one. So the correct answer is one that adds this increase to the original one. which is answer D
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Re: Which of the following is 850 percent greater than [#permalink] New post 12 Dec 2017, 02:53
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Hi guys,

the post above could be deleted but is an answer from a student. Even if it is wrong is always part of the debate.

here, we are to learn.

Kindly Regards
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Re: Which of the following is 850 percent greater than   [#permalink] 12 Dec 2017, 02:53
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