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 Quantitative Aptitude  |  Question 9 of 49    Print  
A person was fined for exceeding the speed limit by 10mph. Another person was also fined for exceeding the same speed limit by twice the same.  If the second person was traveling at a speed of 35 mph, find the speed limit.
Let ‘x’ be the speed limit. Person ‘A’ was fined for exceeding the speed limit by = 10mph
Person ‘B’ was fined for exceeding the speed limit by = twice of ‘A’    => 2*10mph=20mph
given that the second person was traveling at the speed of 35mph => 35mph – 20mph = 15mph
Therefore the speed limit is =15 mph



  
Total Answers and Comments: 5 Last Update: June 11, 2009   
  
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September 30, 2007 13:49:11   #1  
prasad.telagamsetti Member Since: September 2007   Contribution: 9    

RE: A person was fined for exceeding the speed limit b...
15 is correct
 
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December 12, 2007 08:39:34   #2  
Sudhindra Sukumar Member Since: December 2007   Contribution: 2    

RE: A person was fined for exceeding the speed limit by 10mph. Another person was also fined for exceeding the same speed limit by twice the same.  If the second person was traveling at a speed of 35 mph, find the speed limit.
Threshold speed x mph
let us assume that the 1st person was travelling at (x+10)mph
so it's obvious that the 2nd person travels at 2*(x+10)mph 35mph; which means x 7.5 which is the threshold or the speed limit.
So according to me the ans is 7.5mph.

 
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June 13, 2008 16:16:34   #3  
subbu_raja36 Member Since: June 2008   Contribution: 3    

RE: A person was fined for exceeding the speed limit by 10mph. Another person was also fined for exceeding the same speed limit by twice the same.  If the second person was traveling at a speed of 35 mph, find the speed limit.
speed limit x

a speed x+10

anothers speed x+20 ( and not 2(x+10) )

x+20 35

x 15

 
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July 15, 2008 07:55:17   #4  
PRAVEEN ROJA Member Since: July 2008   Contribution: 1    

RE: A person was fined for exceeding the speed limit by 10mph. Another person was also fined for exceeding the same speed limit by twice the same.  If the second person was traveling at a speed of 35 mph, find the speed limit.
17.5 mph

 
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June 11, 2009 13:37:46   #5  
cit.narayanan Member Since: June 2009   Contribution: 3    

RE: A person was fined for exceeding the speed limit by 10mph. Another person was also fined for exceeding the same speed limit by twice the same.  If the second person was traveling at a speed of 35 mph, find the speed limit.
let x be the speed limit;
first person speed x + 10;
second person speed x + (2 * 10);
x + 20;
35 x + 20;
x 15 km/hr

 
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