- Trending Categories
- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies

- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who

# A car moves with a speed of $40\ km/h$ for 15 minutes and then with a speed of $60\ km/h$ for the next 15 minutes. The total distance covered by the car is:

$(i).\ 100\ km$

$(ii).\ 25\ km$

$(iii).\ 15\ km$

$(iv).\ 10\ km$

The correct answer is $(ii).\ 25\ km$

__Explanation:__

__Given:__

A car moves with a speed of $40\ km/h$ for 15 minutes and then with a speed of $60\ km/h$ for the next 15 minutes.

__To do:__

To find the total distance covered by the car.

__Formula to be used:__

$ Distance = Time\times Speed$

__When the car moves with a speed of $40\ km/h$ for 15 minutes:__

Distance$_{1}=15 min \times 40 km/h$

$=\frac{15}{60}\ h\times 40\ km/h$

$=10\ km$

__When the car moves with a speed of $60\ km/h$ for the next 15 minutes:__

Distance$_{2}=15\ min\times 60\ km/h$

$=\frac{15}{60}\ h\times 60\ km/h$

$=15\ km$

Total distance $=Distance_1+Distance_2$

$=10\ km + 15\ km$

$=25\ km$

Therefore, the total distance covered by the car is $25\ km$.

Advertisements