Question
Download Solution PDFIf Ram covers a certain journey at 60% of his usual speed, he reaches the destination late by 36 min. His usual time (in min) to reach the destination is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
60% = 3/5
Let the speed of the man be 5x
60% of the speed = 5x × (3/5) = 3x
Ratio of speed of man before and after = 5x : 3x
As we know, Speed is inversely proportional to time.
Time ratio of man before and after = 3x : 5x
According to the question
5x – 3x = 36 min
⇒ 2x = 36
⇒ x = 18min
Required time = 3x = 3 × (18) = 54 mins.
∴ Option 4 is the correct answer.
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