Zakir travels from City A to City B. If Zakir drives his car at of his normal speed, then he reaches City B 45 minutes late. Find the time (in minutes) that Zakir would have taken to travel from City A to City B if he drove at his normal speed.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 15.
Let normal time = T minutes
If he drives at 1/4 speed, time becomes 4T
Extra time = 4T – T = 3T
This extra time = 45 minutes
So 3T = 45
T = 15 minutes