A train is moving with the speed of 180 km/hr. Its speed (in metres per second) is :
A. 5 m/s
B. 40 m/s
C. 30 m/s
D. 50 m/s
Answer: Option D
Solution (By Examveda Team)
Speed of the train is = 180 km/hr$$\because $$ 1 km/hr = $$\frac{5}{18}$$ m/s
Since,
1 km = 1000 metres
1 hr = 60 × 60 seconds
∴ 1 km/hr = $$\frac{1000}{60 × 60}$$
= $$\frac{5}{18}$$ m/s
∴ Speed in m/s :
= 180 × $$\frac{5}{18}$$
= 50 m/s
This Question Belongs to Arithmetic Ability >> Speed Time And Distance
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