A car traveled 65% of the way from Town A to Town B at an average speed of 65 mph. The car traveled at an average speed of v
mph for the remaining part of the trip. The average speed for the entire trip was 50 mph.What is v in mph?

• Average speed for the entire journey:
  Total distance covered/Total time taken
  Let the total distance covered is 650 miles
  Time taken for the first part of the journey=0.65*650/65=6.5h
  Time taken for the second part of the journey=0.35*650/v=227.5/h
  Now, the equation is : 650/(6.5+227.5/v)=50
  Solving this, we get v=35mph
• 12 years agoHelpfull: Yes(4) No(0)
• A car traveled 65% of the way from Town A to Town B at an average speed of 65 mph. The car traveled at an average speed of v
  mph for the remaining part of the trip. The average speed for the entire trip was 50 mph.
  
  If total disdtance is 100 miles.
  Total time taken = 100/50 = 2 hrs
  Time taken for first 65 miles = 65/65 = 1 hr
  Time taken for balance 35 kms = 2-1=1 hr
  so speed v for balance 35 kms = 35 miles/hr
• 12 years agoHelpfull: Yes(2) No(0)