The time taken to travel the same distance by three cars is in the ratio of 12 : 15 : 10. What is the ratio of the speeds of the three cars?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 5 : 4 : 6.
Given:
The time taken to travel the same distance by three cars is in the ratio of 12 : 15 : 10
Concept used:
As we know,
Speed = Distance/Time
For the same distance,
The ratio of speed is inversely proportional to the ratio of the time.
Calculations:
According to the question;
Hence, the ratio of their speed = (1/12) : (1/15) : (1/10) = 5 : 4 : 6