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June 8th, 2016, 12:31 PM   #1
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about bit rate

Hi guys!!
How could I raise this problem?

If it takes 1 minute to transmit 16 Mbits of data, what is the bit rate at which the data is being transmitted (to 3 significant figures)

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June 8th, 2016, 01:36 PM   #2
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16 Mbit/minute
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June 8th, 2016, 06:17 PM   #3
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Quote:
Originally Posted by bkssacuesa View Post
Hi guys!!
How could I raise this problem?

If it takes 1 minute to transmit 16 Mbits of data, what is the bit rate at which the data is being transmitted (to 3 significant figures)

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This begs the question ... what units of bit rate do you want?
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June 8th, 2016, 11:59 PM   #4
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Hi,
this is the question: If it takes 1 minute to transmit 15 Mbits of data, what is the bit rate at which the data is being transmitted (to 3 significant figures)?

I have to choose one of these:
-0,46Mbps
-0,25Mbps
-510 kbps
-0.9 Mbps
-250Kbps

Last edited by skipjack; June 12th, 2016 at 02:12 PM.
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June 11th, 2016, 05:50 PM   #5
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Hi bkssacuesa,

Please consider the following:

$\displaystyle \large{
\frac{15 \ \text{Mbits}}{\cancel{\text {min}}} \cdot \frac{1 \ \cancel{\text{min}}}{60 \ \text{s}}=250,000 \ \frac{\text{bits}}{\text{s}}
}$

So the second and fifth choices look promising. Since the question asks for 3 significant figures I think the fifth choice, 250 Kbps is correct.
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June 11th, 2016, 06:30 PM   #6
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Interesting ... as listed, none of the choices have 3 significant figures.
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June 12th, 2016, 01:25 AM   #7
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Actually they have..250 are 3 digits.
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June 12th, 2016, 01:45 PM   #8
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Quote:
Interesting ... as listed, none of the choices have 3 significant figures.
Hmm, is this because the problem stated 15 Mb/min and not 15.0 Mb/min? If not, please take a moment and explain your reasoning to me.
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June 12th, 2016, 01:57 PM   #9
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Given the information .25Mbps is exact. 250kbps is approximate, since 1 Mb=1024 kb.
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June 12th, 2016, 11:59 PM   #10
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A bitrate of 1Mb isn't 1024 kb, never has been, never will
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