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    Juhi travelled a distance of 16 km by bicycle at the speed of 15 km per hour

    Juhi travelled a distance of 16 km by bicycle at the speed of 15 km per hour, 20 km by scooter at the speed of 50 km per hour and 50 km by car at the speed of 60 km per hour. The total time (in minutes) to travel these distances was
    (A) 144
    (b) 138
    (c) 88
    (d) 114

    Asked by Anurag Mishra on 27th February 2016 in Maths.
    1 Answers
    Professor

    Answer: (b) 138 minĀ 

    Solution:-
    Juhi traveled a distance of 16 km by bicycle at the speed of 15 km per hour.
    Then, time taken by Juhi = 16 x 60/15
    = 16 x 4
    = 64 min

    She travel 20 km by scooter at the speed of 50 km per hour,
    Then, Time taken by her to travel 20 km = 20 x 60/50
    = 24 min

    She travel 50 km by the car at the speed of 60 km per hour,
    Then, time taken by her to travel 50 km = 50 x 60 /60
    = 50 mjn

    Total time taken by Juhi to travel whole journey = 64 + 24 + 50
    = 138 min

    Hence, the correct answer is option (b) 138 min.

    Answered by Anurag Mishra on 27th February 2016..