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  • Question
  • Find at what time between 9 and 10 o?clock will the hands of a clock be in 180° ?


  • Options
  • A. 180/14 min past 10
  • B. 180/11 min past 9
  • C. 148/7 min past 10
  • D. 154/11 min past 9

  • Correct Answer
  • 180/11 min past 9 

    Explanation

    At 9 o?clock, the hour hand is at 9 and the minutes hand is at 12, i.e., the two hands are 15 min. spaces apart.
    So, the minute hand should gain = (30 - 15) minutes = 15 minutes
    55 minutes will be gained in 60 min.
    15 minutes spaces will be gained in ((60/55) x 15) min. = 180/11 min.
    The hands will be in the same straight line but not together i.e.,in 180 degrees at 180/11 min. past 9.

  • Tags: Bank Exams, CAT, GATE, GRE, Bank Clerk, Bank PO

    Clock Puzzles problems


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    • 1. How many minutes is it until six o?clock if fifty minutes ago it was four times as many minutes past three o?clock?
    • Discuss
    • 2. What is two days after the day after the day before yesterday?
    • Discuss
    • 3. At 3.40, the hour hand and the minute hand of a clock form an angle of:

    • Options
    • A. 120 degrees
    • B. 125 degrees
    • C. 130 degrees
    • D. 135 degrees
    • Discuss
    • 4. A watch which gains uniformly is 2 minutes low at noon on Monday and is 4 min. 48 sec fast at 2 p.m. on the following Monday. When was it correct?

    • Options
    • A. 2 p.m. on Tuesday
    • B. 2 p.m. on Wednesday
    • C. 3 p.m. on Thursday
    • D. 1 p.m. on Friday
    • Discuss
    • 5. A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

    • Options
    • A. 145
    • B. 150
    • C. 155
    • D. 160
    • Discuss
    • 6. Calculate the angle between the two hands of clock when the clock shows 4 : 20 p.m. ?

    • Options
    • A. 5 degrees
    • B. 10 degrees
    • C. 15 degrees
    • D. 25 degrees
    • Discuss
    • 7. 1 Billion Seconds Equals to

    • Options
    • A. 34.76 years
    • B. 32.48 years
    • C. 33.31 years
    • D. 31.68 years
    • Discuss
    • 8. Minute hand overlaps hour hand in 65 mins. In how many days it will gain 1440 hours ?

    • Options
    • A. 57 days
    • B. 58 days
    • C. 60 days
    • D. 61 days
    • Discuss
    • 9. At what time between 2 and 3 O'clock, the hands of a clock coincide ?

    • Options
    • A. 1 10/11 minutes past 2
    • B. 1 10/11 minutes past 3
    • C. 1 11/10 minutes past 3
    • D. 11 10/11 minutes past 2
    • Discuss
    • 10. The reflex angle between the hands of a clock at 11:35 is ?

    • Options
    • A. 137.5 degrees
    • B. 222.5 degrees
    • C. 192.5 degrees
    • D. 330 degrees
    • Discuss


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