Question

the fastest m5"
6.
A car travels the first 19 km of its journey at
an average speed of 57 km/h and the remaining
55 km at an average speed of 110 km/h. Find the
average speed of the car for its entire journey.​

Answer 1

Answer:

88.8km/hr

Step-by-step explanation:

Average speed = total distance by total time

time he took in the first journey= 19/57 h= 1/3 h

time he took in the remaining one= 55/110= 1/2 h

average speed= 19+55/ 1/2+1/3

= 74*6/5=88.8kmph

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