Question

Ryan left the science museum and drove
south. Gabriella left three hours later
driving 42 km/h faster in an effort to catch
up to him. After two hours Gabriella finally
caught up. Find Ryan's average speed.

Answer 1

Gabriella went south, right?

Answer 2

yeah

Answer 3

It may be one of those dumb riddles. Ok lemme work on that

Answer 4

They both will have travelled the same distance...
Therefore Speed(Gabriella) * Time(Gabriella) = Speed(Ryan) * Time(Ryan)

Speed(Ryan) = x km/h
Time(Ryan) = 5 hours
Speed(Gabriella) = (x+42) km/h
Time(Gabriella) = 2 hours

x*5 = (x+42)*2
5x = 2x + 84
3x = 84
x = 84/3

x = 28 km/h

Answer 5

wow man thank you