Hari travels from City A to City B. If Hari drives his car at of his normal speed, then he reaches City B 21 minutes late. Find the time (in minutes) that Hari would have taken to travel from City A to City B if he drove at his normal speed.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 3.
Let normal time taken = x minutes
If speed is 1/8 of normal, time becomes 8x
Delay = 8x - x = 7x
Given: 7x = 21
⇒ x = 21 ÷ 7 = 3 minutes