car takes 10 hours to cover a certain distance at the speed of 40 kilometre per hour find the time taken off if its speed is increased by 10 kilometre per hour
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Answer:
time taken by the car is 8hrs when the speed is increased.
Step-by-step explanation:
time taken when the speed is 40km/h= 10hrs
distance covered by car = 40×10
= 400km
so, the distance covered by car when speed is increased by 10km/h is
= 400÷40+10
= 400÷50
=8hrs
finally the time taken by the car when the speed is increased by 10km/h is 8hrs
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