Question

1 - A bus runs at an average speed of 32 kms/hr. If it completes 304 km long-journey with a break of 30 minutes, what is the total time taken during the

jounrey?

Answer 1

Total time is= 304/32 + 30 =9.2 + 30 = 39.2 hrs

Answer 2

Formula for constant speed is v=d/t, d=distance, t= time

For the first part of the journey the time taken is:

t = 36/54=2/3 hrs

His total journey should last 1 hours 30 minutes= 3/2 hours

Therefore after the first part of the journey, its time left is

t= (3/2) - (2/3)= 5/6 hours

The remaining distance to travel is

d = 72 – 36 = 36km

The bus should then travel at a speed of

v= 36 / (5/6) =43.2 km/hour

hope you understand and thanks for reading