Question

The odometer of a car reads 57321km when the clock shows the time 8.30am.What is the distance
moved by the car if at 8.50am, the odometer reading has changed to 57336km? Calculate the speed of the car
in km/hr during this time.​

Answer 1

Distance traveled at 8:30 a.m -- 57321 km

Final distance traveled at 8:50 a.m -- 57336 km

Distance traveled between 8:30 and 8:50 am -- 57336-57321=15 km

Time taken -- 20 mins( since 8:30 to 8:50 is 20 minutes)

So,speed of car in km per minute = 15/20 km per min.= 0.75 km per min.

in km per hour=  15/20 X 60 = 45 kmph.

So the speed of car is 45kmph or 0.75 km per min if it covers 15km in 20 minutes.

please mark me brain mark list

Answer 2

Answer:

Distance traveled at 8:30 a.m -- 57321 km

Final distance traveled at 8:50 a.m km 57336

Distance traveled between 8:30 and 8:50 am 57336-57321=15 km

Time taken 20 minutes) 20 mins( since 8:30 to 8:50 is

So,speed of car in km per minute = 15/20

km per min.= 0.75 km per min.

in km per hour= 15/20 X 60 = 45 kmph.

So the speed of car is 45kmph or 0.75 km per min if it covers 15km in 20 minutes.

please mark me brain mark list