Question
A man goes from Mysore to Bangalore at a uniform speed of 40 km/hr and comes back to Mysore at a uniform speed of 60 km/hr. His average speed for the whole journey is
Answer: Option C
Answer: (c)Using Rule 5,Average speed= $({2xy}/{x + y})$ kmph= $({2 × 40 × 60}/{40 + 60})$ kmph= 48 kmph
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Answer: (c)Using Rule 5,Average speed= $({2xy}/{x + y})$ kmph= $({2 × 40 × 60}/{40 + 60})$ kmph= 48 kmph
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