SOLUTION: A man travels 42km in 45 min what is his average speed in km/hr

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A man travels 42km in 45 min what is his average speed in km/hr      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 608584: A man travels 42km in 45 min what is his average speed in km/hr
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

A man travels 42km in 45 min what is his average speed in km/hr

Let x represent distance traveled in 60min to find km/hr

 Inquiry sets UP the Proportion   

   42km%2F45+=+x+%2F+60     |Cross Multiplying to solve

       45x = 42·60

         x = 42·60 / 45  

         x = 14*4 = 56 km/hr