Question

A train 270 m long is running at 80km/hr.How much time it will take to cross a platform of 130m long. Direct and inverse variation

Answer 1

Speed of the train = 80 km/hr = 80 x 1000/3600 80 x 5/18 = 200/9 m/sec
Distance = length of the trian + length of the platform = 130 m + 270 m = 400 m

Time = Distance / Speed
= 400x9 / 200
= 2 x 9
= 18 sec.

Answer 2

distance = length of train + length of platform

130m+270m

time=distance/speed

400 ×9 /200

2×9=18second