Question

A train 210 m long took 12 seconds to pass a 90 m long tunnel. Find the speed of
the train. in direct and inverse variation
​

Answer 1

Step-by-step explanation:

speed of the train = \frac{distance}{time}

time

distance

speed = \frac{210+90}{12}

12

210+90

speed = \frac{300}{12}

12

300

speed of the train = 25 m/s