May Yati took 2 hours to cover 2/3 of a journey. He covered the remaining 105 km in 3 hours. Find her average speed for the whole journey.
Average speed = (2/3 of the journey / 2 hours) + (105 km / 3 hours)
= (2/3 x 105 km / 2 hours + 3 hours)
= (210 km / 5 hours)
= 42 km/h