Question : If a man travels at 12.5 percent less speed than his usual speed, then he will reach 9 minutes late. What is the usual time taken by him?
Option 1: 63 minutes
Option 2: 70 minutes
Option 3: 56 minutes
Option 4: 49 minutes
Correct Answer: 63 minutes
Solution :
Given: If a man travels at 12.5 percent less speed than his usual speed, then he will reach 9 minutes late.
Here, 12.5% is equivalent to 9 minutes
So, 100% is equivalent to $\frac{9×100}{12.5}$ = 72 minutes
Therefore, the usual time taken by him = (72 – 9) = 63 minutes
Hence, the correct answer is 63 minutes.
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