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Jace sets off from her home to visit her friend.
She first travels by train for the first 30 km at a speed of 60 km/h.
She then took a bus for 1 hour 30 minutes at an average speed of 50 km/h.
Calculate her average speed for the whole journey.

Respuesta :

mhanifa

Answer:

  • Jace's average speed for the whole journey is 52.5 km/h.

Step-by-step explanation:

  • Average speed = Total distance / Total time

Total distance is:

  • 30 + 1.5*50 =
  • 30 + 75 =
  • 105 km

Total time is:

  • 30/60 + 1.5 =
  • 0.5 + 1.5 =
  • 2 hours

Average speed is:

  • 105/2 =
  • 52.5 km/h

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