Question

A bus travels at a speed of 75Km/hr for 45 minutes and then travels at a speed of 90km/hr for 45 minutes. What distance will it cover in one and a half hour?

Answer 1

Answer:

As the speed is constant

Distance = Speed x Time

45min = (45/60)hrs = 0.75hrs

Distance = 75 x 0.75 = 56.25km

Step-by-step explanation:

hope it helps you

Answer 2

Answer:

123.75km

Step-by-step explanation:

For first time it travel in speed of 75km/hr in 45min

45min =0.75hr

As distance =time * speed

so 0.75hr * 75km=56.25km

for second time it travel in speed of 90km/hr in 45 min

45min=0.75hr

As distance =time * speed

so 0.75hr* 90km=67.5km

If we add both the times we will get 1hr 30min

so we will add both the distance and get proper distance which it cover in 1hr 30min

56.25km + 67.5km = 123.75km

Ans: 123.75km is the distance which it will cover in 1hr 30min.