Question

The odometer of a car reads 24830 km at 1:25 PM, 24865 km at 2:05 PM.

Calculate the speed of the car in km/min and km/h.​

Answer 1

Given :

• Distance = 24865 kms and 24830
• Time = 1 : 25 to 2 : 05

To find :

• Speed in km/min and km/hr

Solution :

Total time taken = 1:25 PM To 2:05 PM

= 40 mins

= 40/60 = 2/3 h

Speed in km/min :

$\sf \: Speed = Distance/Time$

$\sf \: \: speed = 35/40$

$\sf \: speed = \dfrac{7}{8} \: km/min$

$\sf \: Speed = 0.875 \: km/min$

Speed in km/h :

$\tt\: Speed = \cfrac{Distance}{Time}$

$\tt \: Speed = {35} \cfrac{2}{3}$

$\tt \: Speed = 35 \times \cfrac{3}{2}$

Speed = 52.5 km/hr

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Formula for Distance :

$\sf \: speed = distance/time$