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The number of people surfing the Internet doubles every three months.

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The number of people surfing the Internet doubles every three months. [#permalink]

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New post Updated on: 17 Apr 2017, 21:27
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The number of people surfing the Internet doubles every three months. If the number of people surfing the Internet today is 10^3, how many people will be surfing the Internet in one year?

A. 4 × 10^3
B. 10^3 × 2^4
C. 10^7
D. 10^7 × 24
E. 10^11

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Originally posted by SajjadAhmad on 17 Apr 2017, 11:35.
Last edited by Bunuel on 17 Apr 2017, 21:27, edited 1 time in total.
Edited the question.
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Re: The number of people surfing the Internet doubles every three months. [#permalink]

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New post 17 Apr 2017, 21:25
1
SajjadAhmad wrote:
The number of people surfing the Internet doubles every three months. If the number of people surfing the Internet today is 103, how many people will be surfing the Internet in one year?

A. 4 × 10^3
B. 10^3 × 2^4
C. 10^7
D. 10^7 × 24
E. 10^11


Hi SajjadAhmad,

Quote:
If the number of people surfing the Internet today is 103,


103 should be \(10^{3}\). Please modify the question.

Thanks.
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Re: The number of people surfing the Internet doubles every three months. [#permalink]

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New post 17 Apr 2017, 21:28
1
ganand wrote:
SajjadAhmad wrote:
The number of people surfing the Internet doubles every three months. If the number of people surfing the Internet today is 103, how many people will be surfing the Internet in one year?

A. 4 × 10^3
B. 10^3 × 2^4
C. 10^7
D. 10^7 × 24
E. 10^11


Hi SajjadAhmad,

Quote:
If the number of people surfing the Internet today is 103,


103 should be \(10^{3}\). Please modify the question.

Thanks.

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Edited. Thank you.
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Re: The number of people surfing the Internet doubles every three months. [#permalink]

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New post 18 Apr 2017, 15:12
SajjadAhmad wrote:
The number of people surfing the Internet doubles every three months. If the number of people surfing the Internet today is 10^3, how many people will be surfing the Internet in one year?

A. 4 × 10^3
B. 10^3 × 2^4
C. 10^7
D. 10^7 × 24
E. 10^11


For this problem, it's probably easier to just write out the numbers:

10\(^3\) =

Today:=1000
x 2 in 3 months = 2000
x 2 (+3 months) = 4000
x 2 (+3 months) = 8000
x 2 (+3 months) = 16,000

From answer choices: 16,000 = 16 x 1000 = 2\(^4\) x 10\(^3\) -- or 10\(^3\) x 2\(^4.\) Answer: B
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Re: The number of people surfing the Internet doubles every three months.   [#permalink] 18 Apr 2017, 15:12
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