Question

1. a train travels the distance from san antonio to houston in texas in 2 hours and 15 minutes. if these two places are 135 km apart, what is the average speed of the train in kilometres per hour?

Explanation:

Step1: Convert time to hours

2 hours and 15 minutes. 15 minutes is $\frac{15}{60} = 0.25$ hours. So total time $t = 2 + 0.25 = 2.25$ hours.

Step2: Use speed formula

Speed formula is $v=\frac{d}{t}$, where $d = 135$ km, $t = 2.25$ hours. So $v=\frac{135}{2.25}=60$ km/h.

Answer:

60