Zakir travels from City A to City B. If Zakir drives his car at $$\frac 14$$​ 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.

Correct option is C

Given:

If Zakir drives at $$\frac 14$$​ of his normal speed, he is 45 minutes late.

Let the normal time taken to reach City B be x minutes.

Formula Used:

- Time =$$\frac{Distance }{ Speed}$$​

- If speed decreases, time increases proportionally for the same distance.

Solution:

Let the time Zakir normally takes be x minutes.
If the speed is reduced to 1/4, the time becomes 4 times more, i.e., 4x.
The delay caused = 4x - x = 3x
Solution:
3x = 45
x = 15