Eva left home at 11.35 a.m. and drove towards the campsite. 2 hours later, her older brother left their home and drove towards the same campsite at 92 km/h. When the older brother reached the campsite at 5.35 p.m., Eva had another 2 km to travel. What was Eva’s average speed? Express your answer in mixed number.
Time that the Eva's older brother started driving = 1.35 p.m.
Duration that Eva's older brother drove from 1.35 p.m. to 5.35 p.m. = 4 h

Distance that Eva's older brother travelled
= 4 x 92
= 368 km

Distance that Eva travelled by the time her older brother reached the city
= 368 - 2
= 366 km

Time that Eva took to travel 366 km = 6 h

Eva's average speed
= 366 ÷ 6
= 61 km/h

Answer(s): 61 km/h