Question

A car takes 1 hour to travel 100 km along a main road and then 12 hour to
travel 20 km along a side road.
What is the average speed of the car for the whole journey?
(a) 60 km h
(b) 70 km h:1
(c) 80 km h?
(d) 100 km h-1​

Answer 1

I think c) 80 km

Hope it helps you