A train is travelling at the rate of 45 km/h. How many seconds it will take to cover a distance of $$\tfrac{4}{5}$$​ km.

Correct option is A

Given:

Speed of the train = 45 km/h

Distance to be covered = $$\frac{4}{5}$$ km​

Formula Used:

​$$\text{Time} = \frac{\text{Distance}}{\text{Speed}}$$​​

Solution:

​$$\text{Time} = \frac{\frac{4}{5}}{45} \text{ hours}$$​​

=$$\frac{4}{5} \times \frac{1}{45}$$​

= $$\frac{4}{225} \text{ hours}$$​​

Convert to seconds:

=$$\frac{4}{225} \times 3600$$​​

=$$\frac{14400}{225}$$​​

=64 seconds

Option (A) is right.