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6th Class Mathematics Related to Competitive Exam Question Bank Time and Clock

  • question_answer
    A clock loses \[\frac{1}{2}%\] on true time during one week and gains \[\frac{1}{4}%\] on true time during the next week. If it is set right at 120'clockon Saturday morning, what time will it indicate at the end of second week?

    A) 11 : 34                        

    B) 11:48

    C) 12 : 15            

    D)          13:02

    Correct Answer: A

    Solution :

        Loss \[=0.005\times 7\times 24\,hrs.\,=0.84\,hrs.\] Gain = 0.42 hrs. Overall loss == 0.42 hrs. = 25 min. 12 sec. \[\therefore \]  Time shown at end of 2nd week = 11.34 a.m. i.e., 11 hr 34 min 48 sec.


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