Question

Miss Faiza completes a journey in 3 stages. In stage 1, she drives at a speed of 40km/h for 45 minutes. In stage 2, she drives at 60 km/h for 2 hours 9 minutes. Altogether, over the 3 stages, Miss Faiza drives 171.6km in 3 hours 15 minutes. What is her average speed, in km/h, in stage 3?

Answer 1

Answer:

only in stage 3 her velocity is 52.8 km/h.