Jack travelled 2/3 of his journey at 60km/h.For the remaining 25km he travelled at 30km/h.How much time did he take for the whole journey?

Answer 1

So 1/3 of the distance is 25 km

1/3 X = 25

X = 75

So he travels 50 km at 60 km/hr ----> 5/6 hour = 50 minutes

Then he travels 25 km at 30 km/hr ---> 25/30 hr = 5/6 hr = 50 minutes

That is 1 hour and 40 minutes