Question

Study the table given below. Tick the correct statement.

	Distance Travelled	Time Taken
Vikram	144 km	2 h
Tarun	25 m	2 s
Ram	100 m	6 s

(a) Vikram travels fastest.
(b) All three travel at the same speed.
(c) Tarun and Ram travel at the same speed.
(d) Ram travels at the greatest speed.

Answer 1

(a) Vikram travels the fastest.

Distance travelled by Vikram = 144 km
= (144 $\times$ 1000) m
= 144000 m (∵ 1 km = 1000 m)

Time taken by him = 2 h
= (2 $\times$ 60 $\times$ 60) s
= 7200 s (∵ 1 h = 60 $\times$ 60 s)

Speed of Vikram = Distance travelled/Time taken
= 144000/7200
= 20 m/s

Similarly,

Speed of Tarun = Distance travelled by Tarun/Time taken
= 25/2
= 12.5 m/s
And,

Speed of Ram = Distance travelled by Ram/Time taken
= 100/6
= 16.7 m/s


It is clear from the above calculation that Vikram travels the fastest among the three.