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A clock is set right at 12 noon on Monday. It losses $$\frac{1}{2}$$ % on the correct time in the first week but gains $$\frac{1}{4}$$ % on the true time during the second week. The time shown on Monday after two weeks will be

A. 12 : 25 : 12

B. 11 : 34 : 48

C. 12 : 50 : 24

D. 12 : 24 : 16

E. None of these

Answer: Option B

Solution(By Examveda Team)

Time lost over two weeks = 25% a week time(given that $$\frac{1}{2}$$ % clock loses in first week and in the second week it gains $$\frac{1}{4}$$ % on true time)
A week = 168 hours
Hence, clock lost = 0.42 hours = 25.2 minutes or 25 minute 12 seconds
Thus, correct time = 11 : 34 : 48

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Comments ( 3 )

  1. Examveda
    Examveda :
    1 year ago

    Thanks, Puja and Arya, Answer updated

  2. ArYa Kishor
    ArYa Kishor :
    2 years ago

    Option (A) 12:25:12 is worng answer
    the correct answer is option (B) 11:34:48

  3. Puja Agrawal
    Puja Agrawal :
    2 years ago

    If it losses 25min and 12sec, then the timecshown after 2 weeks will be 11:34:48 (12noon- 25min and 12sec) i.e. option B not option A i.e 12:25:12

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