The diagram is the distance time graph of a vehicle. Find...
The diagram is the distance time graph of a vehicle. Find its average speed in kilometers per hour during the journey
155km/hr
50km/hr
40km/hr
124km/hr
84km/hr
Correct answer is E
Distance = 155 - 50 = 105km
Time = 75mins
= \(\frac{75}{60}\)hr = \(\frac{5}{4}\)hr
Average speed = \(\frac{Distance}{time}\) = \(\frac{105}{\frac{5}{4}}\)
= \(\frac{105 \times 4}{5}\)
= 84km\h
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