A car covers its journey at the speed of 80km/hr in 10hours.
Question 1:
A car covers its journey at the speed of 80km/hr in 10hours. If the same distance is to be covered in 4 hours, by how much the speed of car will have to increase?
A.40km/hr
B.60km/hr
C.90km/hr
D.120km/hr
FeedbackInitial speed = 80km/hr Total distance = 80 * 10 = 800km new speed = 800/4 =200km/hr Increase in speed = 200 - 80 = 120km/hr
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