Question

2. A train travels at a speed of 20 m per
second. Its speed in km per hour is....
A) 82
B) 62
C) 72
D) 68​

Answer 1

Step-by-step explanation:

• Here, Speed = 20 meter per second.
• Speed in kilometer per hour = 20*60*60/1000 = 2*6*6 = 2*36 = 72 km per h.
• So, option C) 72