ICSE Class 10 Probability — Mock Test (2027)
Free online mock test for Probability (ICSE Class 10 Mathematics) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Probability chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.If P(E) = 0.59, find P(not E).
- A.0.59
- B.0.41
- C.1.59
- D.0.51
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2.A letter is chosen at random from the letters of the word ASSASSINATION, then the probability that the letter chosen is a vowel in the form of $\frac{6}{2x + 1}$, then $x$ is equal to:
- A.5
- B.6
- C.7
- D.8
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3.A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is three times that of a red ball, how many blue balls are in the bag?
- A.5 blue balls
- B.10 blue balls
- C.15 blue balls
- D.20 blue balls
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4.A bag contains white, black, and red balls only. A ball is drawn at random from the bag. The probability of getting a white ball is $\frac{3}{10}$ and that of a black ball is $\frac{2}{5}$. What is the probability of getting a red ball? If the bag contains 20 black balls, what is the total number of balls in the bag?
- A.Probability of red ball: $\frac{1}{10}$; Total balls: 40
- B.Probability of red ball: $\frac{3}{10}$; Total balls: 50
- C.Probability of red ball: $\frac{1}{5}$; Total balls: 60
- D.Probability of red ball: $\frac{1}{2}$; Total balls: 30
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5.The probability expressed as a percentage of a particular occurrence can never be:
- A.less than 100
- B.less than 0
- C.greater than 1
- D.anything but a whole number
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