Question

10. A train travelling with uniform
speed crosses two bridges of
lengths 300 m and 240 m in 21
seconds and 18 seconds respec-
tively. The speed of the train is :
(1) 72 km/hr (2) 68 km/hr
(3) 65 km/hr (4) 60 km/hr
​

Answer 1

Step-by-step explanation:

1. Speed = Distance ÷Time

so, answer is 60 km/hr

Answer 2

65 km/hr

because of MCQ.