Respuesta :

90 kilometers = 5 hours so multiply 5 x 3 = 15 so  90 x3 =270
The answer to your question is 270 kilometers.Why is it 270 kilometers?

5/90 & 15/x       

x=kilometers 

Numerator(Number on top): 5 x 3=15 

Denominator(Number on the bottom) 90 x 3 = 270 

So 270 kilometers is your answer.