The average speed of a car for the first $24$ minutes is $80$ km/h. In the next $2$ hours \(45

Question

The average speed of a car for the first $24$ minutes is $80$ km/h. In the next $2$ hours $45$ minutes, it travelled a distance of $318$ km. Express the total time taken in hours. Find the average speed of the car for the whole journey.

Accepted Answer

(a) $3.15$ hours (b) $111\frac{1}{9}\text{ km/h}$ (approximately $111\text{ km/h}$ to $3$ s.f.)

Average Speed and Total Time Calculation

Average Speed and Total Time Calculation

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