Question

1) A car covers one-fourth of a distance at a speed of
100 km/hr, half of the remaining distance at a speed of
60 km/hr and the remaining distance at a speed of
Section 1-8
100 km/hr. If the total time taken to complete the journey
is 10 hours, then what is the average speed of the car?
A) 80 km/hr
B) 72 km/h
C) 75 km/hr
D) 64 km/h​

Answer 1

Answer:

A car covers the first half the distance between two places at 40 km/h another half at 60 km/h, the average speed of car. A. 40 km/h. B. 48 km/h. C. 50 km/h. D. 60 km/h. Medium. Answer. Letx consider, x= total distance covered by the car,. Time taken to complete the half distance with velocity v=40km/h,. t1​=2×40x​=80x​hr.

Step-by-step explanation: