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Basic Mathematics

What is the Angle between hour and minute hand at 6 o’clock

A. 90 degree
B. 120 degree
C. 160 degree
D. 180 degree



Answer & Solution
Option: D
Explanation :As we know that when time is 6 o’clock then minute hand is straight up, and the hour hand is straight down, so the angle between the hands is 180 degrees. Clock is shaped like a circle and is composed of 360 degrees. There are 60 minutes in an hour, and 360 degrees divided by 60 minutes is 6. So minute hand moves 6 degrees per minute. The two angles created by the hour hand and minute hand at six o’clock are 180 degrees.
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    A player drank 10 bottles of water in a cricket match. The capacity of each bottle is 1.5 liter. How many liters of water the player drank?

    A. 15.5 Liters
    B. 10 Liters
    C. 15 Liters
    D. 10.5 Liters

    Answer & Solution
    Option: C
    Explanation :player drank 10 bottles of water in a cricket match , Total liters of water the player drank in a cricket match is 15. Because we multiply 10 with 1.5 and we will get 15.0 Liters.
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      Which one is correct permutations in the word “Pakistan”?

      A. 40320
      B. 10080
      C. 78620
      D. 20160



      Answer & Solution
      Option: D
      Explanation :Pakistan has total 8 letters and 2 letters are repeated, so that permutations formula gives:
      8!/2!
      = 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1/(2 x 1)
      Cancel 2 by 2 we get
      =8 x 7 x 6 x 5 x 4 x 3
      =20160 permutations.
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        Write these numbers in descending order? 61, 34, 29, 58, 72

        A. 29, 34, 58, 61, 72
        B. 72, 61, 58, 34, 29
        C. 72, 34, 58, 29, 61
        D. 34, 72, 58, 29, 61

        Answer & Solution
        Option: B
        Explanation :descending order means arrangement of things, quantities, lengths etc. that begins with the greatest number and ends with the smallest number.
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          In a one kilometer race F beats B by 28 meters in 7 seconds. Find out the time taken by A to finish the race?

          A. 4 minute 20 second
          B. 5 minute
          C. 3 minute 4 second
          D. 4 minute 3 second




          Answer & Solution
          Option: D
          Explanation :In a one kilometer race F beats B by 28 meters in 7 seconds. 4 minute 3 second time taken by A to finish the race.
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