Ravi travels from City A to City B. If Ravi drives his car at of his normal speed, then he reaches City B 47 minutes late. Find the time (in minutes) that Ravi 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. 94 .
Let the normal time be T minutes and normal speed be S
Distance = Speed × Time
Speed = 2/3 S,
time = Distance ÷ (2/3 S) = 3/2 × T = 1.5T
Extra time = 1.5T − T = 0.5T
Given extra time = 47 minutes
0.5T = 47
T = 47 ÷ 0.5 = 94 minutes