Home » The diagram is the distance time graph of a vehicle. Find its average speed in…

The diagram is the distance time graph of a vehicle. Find its average speed in…

The diagram is the distance time graph of a vehicle. Find its average speed in kilometers per hour during the journey
  • A.
    155km/hr
  • B.
    50km/hr
  • C.
    40km/hr
  • D.
    124km/hr
  • E.
    84km/hr
Correct Answer: Option E
Explanation

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})
= 84kmh