A bus is travelling the first …
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
A bus is travelling the first one-third distance at a speed of 10km/h, the next one-fourth at 20km/h and the remaining at 40km/h. What is the average speed of the bus?
Posted by Anudhka Rai 3 years, 6 months ago
- 2 answers
Rajinder Saharan 3 years, 6 months ago
It covered =
x/3 at 10
x/3 at 20
x/3 at 60
Times taken respectively are {d/t}
x / 30
x / 60
x / 180 respectively
total time = x/30 + x /60 + x/180
= 10x / 180
= x / 18
Average speed of bus (avg speed)
= total distance / total time
avg speed = x / {x/18}
So, average speed = 18 km / h
Related Questions
Posted by Pankaj Tripathi 4 months ago
- 1 answers
Posted by Nekita Baraily 4 months ago
- 2 answers
Posted by Mohammed Javith 4 months, 1 week ago
- 0 answers
Posted by M D 4 months ago
- 1 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Sia ? 3 years, 6 months ago
It covered =
x/3 at 10
x/3 at 20
x/3 at 60
Times taken respectively are {d/t}
x / 30
x / 60
x / 180 respectively
total time = x/30 + x /60 + x/180
= 10x / 180
= x / 18
Average speed of bus (avg speed)
= total distance / total time
avg speed = x / {x/18}
So, average speed = 18 km / h
0Thank You