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  • Question
  • At what time between 1'O clock and 2'O clock the hands of the clock are opposite to each other.


  • Options
  • A. 34(6/11) past 1'Oclock
  • B. 38(2/11)past 1'Oclock
  • C. 56(8/11)past 1'Oclock
  • D. 64(9/11)past 1'Oclock

  • Correct Answer
  • 38(2/11)past 1'Oclock 

    Explanation

    The minute hand to coincide with the hour hand it should trace at first 5 minute spaces and then the hands of the clocks to be opposite to each other minute hand should trace 30 minute spaces i.e. totally it should gain 5 + 30 = 35 minute spaces to be opposite to that of hour hand.
    We know that, Minute hand gains 55 minute spaces over hour hand in 1 hour. Therefore, Minute hand gain 40 minute spaces over hand in 35 x (60/55) = 38(2/11).
    Hence the hand of the clock will minutes be opposite to each at 38 (2/11) past 1'O clock. Therefore, Correct option is B.


  • Calendar problems


    Search Results


    • 1. 
      By how many degree does the minute hand move in the same time, in which the hour hand move by 28?

    • Options
    • A. 168
    • B. 336
    • C. 196
    • D. 376
    • Discuss
    • 2. 
      At what time between 8 and 9 o'clock will the hands of a clock be at right angle?

    • Options
    • A. 8 : 163/11
    • B. 8 : 273/11
    • C. 8 : 173/11
    • D. None of these
    • Discuss
    • 3. 
      At what time between 9 and 10 o'clock will the hands of a clock be in the same straight line but not together?

    • Options
    • A. 9 :164/11
    • B. 9 :154/11
    • C. 9 :174/11
    • D. None of these
    • Discuss
    • 4. 
      Find the angle between minute hand and hour hand at 2 : 45

    • Options
    • A. 180°
    • B. 190°
    • C. 175°
    • D. None of these
    • Discuss
    • 5. 
      Find the percentage change in angle between minute hand hour hand from 2 PM to 6 PM.

    • Options
    • A. 100
    • B. 200
    • C. 250
    • D. None of these
    • Discuss
    • 6. 
      How many times in a day (24 Hrs) are the hands of a clock coincide?

    • Options
    • A. 20
    • B. 22
    • C. 24
    • D. 48
    • Discuss
    • 7. 
      How many times in a day (24 Hrs) are the hands of a clock are in a straight line?

    • Options
    • A. 20
    • B. 22
    • C. 44
    • D. 48
    • Discuss
    • 8. 
      How many times in a day (24 Hrs) are the hands of a clock are in a perpendicular to each other?

    • Options
    • A. 20
    • B. 22
    • C. 44
    • D. 48
    • Discuss
    • 9. 
      A watch, which gains uniformly, is 2 min, slow at noon on Saturday, and is 4 min 48 seconds fast at 3 p.m on the following Sunday when was it correct?

    • Options
    • A. 2 : 00 pm on Tuesday
    • B. 12 noon on Monday
    • C. 2 : 00 am on Tuesday
    • D. None of these
    • Discuss
    • 10. 
      A clock is set at 10 a.m. The clock loses 16 minute in 24 hours. What will be the true time when the clock indicates 3 a.m. on 4th day?

    • Options
    • A. 9 p.m
    • B. 10 p.m
    • C. 11 p.m
    • D. 12 p.m
    • Discuss


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