Which of the following three is travelling the fastest?

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All are at same speed

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Solution

The correct option is B
B

Speed of Car A

= $\frac{f i n a l - i n i t i a l}{t i m e}$ = $\frac{13 - 8}{1.4} = 3.57 k m / h$

Speed of Car B

= $\frac{f i n a l - i n i t i a l}{t i m e}$ = $\frac{8 - 0}{0.6} = 13.33 k m / h$

Speed of Car C

= $\frac{f i n a l - i n i t i a l}{t i m e}$ = $\frac{13 - 8}{1.4 - 0.6} = 6.25 k m / h$

Hence, Car B is travelling the fastest.

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Which of the following three is travelling the fastest?

The correct option is B B Speed of Car A = final−initialtime = 13−81.4=3.57km/h Speed of Car B = final−initialtime = 8−00.6=13.33km/h Speed of Car C = final−initialtime = 13−81.4−0.6=6.25km/h Hence, Car B is travelling the fastest.