A person was fined for exceeding the speed limit by 10 mph. Another person was also fined for exceeding the same speed limit by twice the same. If the second person was travelling 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
  
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