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  1. 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
    1. 48 km/hr
    2. 50 km/hr
    3. 54 km/hr
    4. 55 km/hr
Correct Option: A

Average speed =
2xy
kmph
x + y

=
2 × 40 × 60
kmph
40 + 60

= 48 kmph


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