Question
Download Solution PDFA man goes to Mumbai from Pune at a speed of 4 km/hr and returns to Pune at a speed of 6 km/hr. What is his average speed for the entire journey?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Speed from Pune to Mumbai (S1) = 4 km/hr
Speed from Mumbai to Pune (S2) = 6 km/hr
Formula used:
Average Speed = \(\dfrac{2 \times S_1 \times S_2}{S_1 + S_2}\)
Calculation:
Average Speed = \(\dfrac{2 \times 4 \times 6}{4 + 6}\)
⇒ Average Speed = \(\dfrac{48}{10}\)
⇒ Average Speed = 4.8 km/hr
∴ The correct answer is option (1).
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