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: 2,195 Thanks: 1045  
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: 2,195 Thanks: 1045 
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: 6,173 Thanks: 477 
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: 669 Thanks: 260 
A bitrate of 1Mb isn't 1024 kb, never has been, never will 

Tags 
bit, rate 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Average rate of change and the instantaneous rate of change  puppypower123  Calculus  1  April 14th, 2016 05:48 PM 
Rate the same or different  caters  Math  2  March 8th, 2015 04:34 PM 
Rate  jiasyuen  Calculus  1  February 17th, 2015 08:32 PM 
rate of change and average rate of change  bongantedd  PreCalculus  1  April 30th, 2014 12:40 AM 
Rate of changes  tankertert  Calculus  1  May 1st, 2012 10:01 PM 