If Aman travels at 12.5 percent less speed, then he will reach 9 minutes late. What is the usual time taken by him?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 63 min.
12.5% = 1/8
Speed = Distance/time
Let's assume his initial speed = 8
After 12.5% in speed, His new speed = 8 - 1 = 7
Initial speed : New speed = 8 : 7
Initial time : New time = 7 : 8
Late = 9 min
Time difference= 8 - 7 = 9 min
1 = 9 min
His actual time = 7 × 9 min = 63 min