June 8th, 2016, 12:31 PM  #1 
Newbie Joined: Mar 2016 From: longon Posts: 7 Thanks: 0  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) Thanks 
June 8th, 2016, 01:36 PM  #2 
Senior Member Joined: Dec 2015 From: holland Posts: 149 Thanks: 35 Math Focus: tetration 
16 Mbit/minute

June 8th, 2016, 06:17 PM  #3 
Math Team Joined: Jul 2011 From: Texas Posts: 2,425 Thanks: 1194  
June 8th, 2016, 11:59 PM  #4 
Newbie Joined: Mar 2016 From: longon Posts: 7 Thanks: 0 
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. 
June 11th, 2016, 05:50 PM  #5 
Senior Member Joined: Jul 2012 From: DFW Area Posts: 590 Thanks: 71 Math Focus: Electrical Engineering Applications 
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. 
June 11th, 2016, 06:30 PM  #6 
Math Team Joined: Jul 2011 From: Texas Posts: 2,425 Thanks: 1194 
Interesting ... as listed, none of the choices have 3 significant figures.

June 12th, 2016, 01:25 AM  #7 
Senior Member Joined: Dec 2015 From: holland Posts: 149 Thanks: 35 Math Focus: tetration 
Actually they have..250 are 3 digits.

June 12th, 2016, 01:45 PM  #8  
Senior Member Joined: Jul 2012 From: DFW Area Posts: 590 Thanks: 71 Math Focus: Electrical Engineering Applications  Quote:
 
June 12th, 2016, 01:57 PM  #9 
Global Moderator Joined: May 2007 Posts: 6,214 Thanks: 491 
Given the information .25Mbps is exact. 250kbps is approximate, since 1 Mb=1024 kb.

June 12th, 2016, 11:59 PM  #10 
Senior Member Joined: Apr 2014 From: UK Posts: 710 Thanks: 271 
A bitrate of 1Mb isn't 1024 kb, never has been, never will 

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