If it took 5 hours to travel 90 kilometers, then at that rate, how many kilometers would be traveled in 15 hours?

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.

90 kilometers = 5 hours so multiply 5 x 3 = 15 so 90 x3 = 270