The odometer of a car reads 57321.0km when the clock shows the time 8:30 AM. The distance moved by car if, at 8:50 AM, the odometer reading has changed to 57336.0km and also the speed will be:
15km,55km/h
20km,45km/h
15km,45km/h
10km,45km/h
A
10km,45km/h
B
15km,55km/h
C
20km,45km/h
D
15km,45km/h
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Solution
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The correct option is A15km,45km/h
Time from 8.30AM to 8.50AM = 20min
20min=(20/60)h=(1/3)h =2060h=13h
(a) Distance covered = Second reading - First reading = 57336.0km - 57321.0km = 15km
(b)Speed=DistanceTime=151/3=45km/h
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Q1
The odometer of a car reads 57321.0km when the clock shows the time 8:30 AM. The distance moved by car if, at 8:50 AM, the odometer reading has changed to 57336.0km and also the speed will be:
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Q2
The
odometer of a car reads 57321.0 km when the clock shows the time
08:30 AM. What is the distance moved by the 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.