Information Processing Book Back Questions

8th Standard EM

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Maths

Time : 00:45:00 Hrs
Total Marks : 30
    3 x 1 = 3
  1. How many outcomes can you get when you toss three coins once?

    (a)

    6

    (b)

    8

    (c)

    3

    (d)

    2

  2. In how many ways can you answer 3 multiple choice questions, with the choices A, B, C and D?

    (a)

    4

    (b)

    3

    (c)

    12

    (d)

    64

  3. How many 2 digit numbers contain the number 7?

    (a)

    10

    (b)

    18

    (c)

    19

    (d)

    20

  4. 4 x 2 = 8
  5. In how many ways, can the teacher choose 3 students in all, one each from 10 students in VI std, 15 students in VII std and 20 students in VIII std to go to an excursion?

  6. If you have 2 school bags and 3 water bottles then, in how many different ways can you carry both a school bag and a water bottle, while going to school?

  7. Colour the following patterns with as few colours as possible but make sure that no two adjacent sections are of the same colour.

  8. Shanthi has 5 chudithar sets and 4 frocks. In how many possible ways, can she wear either a chudithar or a frock?

  9. 3 x 3 = 9
  10. How many possible outcomes are there in tossing a coin 

  11. What are the possible outcomes if a fair die is rolled? 

  12. In how many ways, can the students answer 3 questions which are true or false type in a slip test?

  13. 2 x 5 = 10
  14. Colour a map of South India (Fig. 5.18) with the fewest number of colours.

  15. Use graph colouring to determine the minimum number of colours that can be used. The adjacent states should not have the same colour.
    Use the graph given below such that,
    (i) each state is assigned a coloured vertex.
    (ii) edges are used to connect the vertices of States.

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