Question

A bus travels 21 km at a constant speed of 56 km/hr and another 50 km at a constant speed of 75 km/hr.
How long did it take to complete this trip ?

Answer 1

Answer:

22km 775m

Step-by-step explanation:

travelled by bus =15km268m=15.268km

travelled by car =7km7m=7.007km

 travelled on foot =500m=0.500km

 Total distance travelled =15.268+7.007+0.500=22.775km

 ∴ total distance travelled by Sunita is 22km 775m

Answer 2

Answer:

Step-by-step explanation:

Hey, how you doing, so the answer for your question is as follow:-

Bus travels in first go=21 km

Bus travel in second go= 50 km

Now in first time the speed was 56 km/hr and second time it is 75km/hr

So= you can say it travelled 21 km at the speed of 56km/hr and 50 km at the speed of 75 km/hr.

So it ask us to calculate the total time for whole journer, so you can use the formula for time as :-

Time= Distance/Speed, so time for first go= 21/56= and time for the second go as 50/75, so time for first part= 0.375

for the second part= 0.67, so add it and total time = 0.375+0.67=1.045