Question

a car travels the first 19 km of its journey at average speed of 57km/h its ans is this

6. Time taken to travel the first part of the journey
= 19
57
= 1
3
h
Time taken to travel the remaining part of the journey
= 55
110
= 1
2
h
Average speed of the car for its entire journey
= Total distance travelled
Total time taken
= +
+
19 55
1
3
1
2
= 74
5
6
= 88 4
5
km/

Answer 1

Answer:

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Step-by-step explanation:

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