Zakir travels from City A to City B. if Zakir drives his car at of his normal speed, then he reaches City B 10 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: A
Explanation
The correct answer is Option 1 i.e. 20.
Let normal time = x minutes
Slower speed = 2/3 → time becomes = 3x/2
Delay = 3x/2 − x = 10
⇒ (3x − 2x)/2 = 10
⇒ x/2 = 10
⇒ x = 20 minutes