The odometer of a car reads 57321.0 km when the clock shows the time 0

1.	The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/ min during this time. Express the speed in km/h also.
Answer» Distance = 57336.0 km – 57321.0 km = 15 km Speed in km / min 15 km/20 km = 3/4 km/min Speed in km/hr =\(\frac{15 \,km}{\frac{1}{3}h}\) = (15 x 3)km/h = 45 km/h.

The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/ min during this time. Express the speed in km/h also.

Answer»

Distance = 57336.0 km – 57321.0 km = 15 km

Speed in km / min

15 km/20 km = 3/4 km/min

Speed in km/hr

=\(\frac{15 \,km}{\frac{1}{3}h}\) = (15 x 3)km/h = 45 km/h.