Question
Download Solution PDFWalking A person arrives at his office late 18 minutes after leaving at \(\frac{3}{4}\) of his normal speed. How many minutes does he typically arrive?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven
Current speed = 3/4 of usual speed
Concept
Time is inversely proportional to speed.
Calculation
New speed : Usual speed = 3 : 4
Hence, New time : Usual time = 4 : 3 = 4x : 3x
According to question,
4x - 3x = 18 minutes
⇒ x = 18 minutes
Usual time = 3x
⇒ 3 × 18 = 54 minutes
∴ The correct answer is 54 minutes.
Last updated on May 28, 2025
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