Hari travels from City A to City B. If Hari drives his car at of his normal speed, then he reaches City B 30 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: C
Explanation
The correct answer is option 3 i.e. 60 .
He meant 2/3 of normal speed (slower), so 30 minutes late
Let normal time = t minutes
Time at 2/3 speed = t ÷ (2/3) = 3t/2
Delay = 3t/2 − t = 30
t/2 = 30
t = 60