A person walking 5/6 of his usual rate is 40 minutes late. What is his usual time?
A. 2 hours 20 minutes
B. 3 hours 20 minutes
C. 2 hours
D. 4 hours 10 minutes
E. None of them
সঠিক উত্তরঃ
B.
3 hours 20 minutes
Explanation:
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