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Probability Quiz - ICSE Class 5 Mathematics

Free practice quiz: Probability (ICSE Class 5 Mathematics). 59 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

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Sample questions

  1. In a bag, there are 5 red balls and 3 blue balls. If you pick one ball at random, what is the probability of picking a red ball?

    1. 3/8
    2. 5/8
    3. 5/3
    4. 3/5
    Show answer

    Answer: B. 5/8

    The total number of balls in the bag is 5 (red) + 3 (blue) = 8. The number of favorable outcomes (picking a red ball) is 5. Therefore, the probability of picking a red ball is the number of red balls divided by the total number of balls, which is 5/8.

  2. From a group of 10 boys and 8 girls, a committee of 2 is to be chosen. What is the probability that the committee consists of 1 boy and 1 girl?

    1. 80/153
    2. 10/18
    3. 8/18
    4. 9/18
    Show answer

    Answer: A. 80/153

    Total number of ways to choose 2 people from 18 is C(18, 2) = (18*17)/(2*1) = 153. Number of ways to choose 1 boy from 10 is C(10, 1) = 10. Number of ways to choose 1 girl from 8 is C(8, 1) = 8. Number of ways to choose 1 boy and 1 girl is 10 * 8 = 80. The probability is 80/153.

  3. What is the probability of selecting the letter 'S' from the word 'SUCCESS'?

    1. 2/7
    2. 3/7
    3. 4/7
    4. 1/7
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    Answer: B. 3/7

    The word 'SUCCESS' has 7 letters. The letter 'S' appears 3 times. The probability of selecting 'S' is 3/7.

  4. If you choose a number from 1 to 20, what is the probability that the number is a multiple of 5?

    1. 4/20
    2. 5/20
    3. 6/20
    4. 3/20
    Show answer

    Answer: A. 4/20

    The multiples of 5 between 1 and 20 are 5, 10, 15, 20. There are 4 such numbers. The total number of possible outcomes is 20. The probability is 4/20.

  5. What is the probability of drawing a heart from a standard deck of 52 cards?

    1. 13/52
    2. 1/4
    3. Both A and B
    4. None of the above
    Show answer

    Answer: C. Both A and B

    There are 13 hearts in a standard deck of 52 cards. The probability of drawing a heart is 13/52. This fraction simplifies to 1/4 by dividing both numerator and denominator by 13. Therefore, both 13/52 and 1/4 are correct.

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