When the speed of a car is increased by 25%, it takes 24 minutes less to cover the same distance. What is the time (in hours) taken to cove the same distance at the actual speed?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 2
Given:
The speed of a car is increased by 25%, it takes 24 minutes less to cover the same distance
Concept used:
When the distance is constant, speed is indirectly proportional to the time taken.
Calculations:
We know, 25% = 1/4
According to the question;
When the speed of a car is increased by 25%, it takes 24 minutes less to cover the same distance
⇒ (5 - 4) unit = 24 minutes
⇒ 1 unit = 24 minutes
Actual time taken = 24 × 5 = 120 minutes or 2 hours