CBSE Class 10 Mathematics Basic sample paper 2026-27: question 19
From the official CBSE sample question paper for 2026-27, section A, question 19, for 1 mark. Try it first; the hints and our step-by-step solution are below.
Q19 · 1 mark · Assertion-reasonCompetency-basedProbability
Directions: Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.
ASSERTION (A): The probability of getting number 8 on rolling a die is zero (0).
REASON (R): The probability of an impossible event is zero (0).
- (A)Both Assertion (A) and Reason (R) are true and (R) is the correct explanation of Assertion (A).
- (B)Both Assertion (A) and Reason (R) are true but (R) is not the correct explanation of Assertion (A).
- (C)Assertion (A) is true but Reason (R) is false.
- (D)Assertion (A) is false but Reason (R) is true.
Source: official sample paper from cbseacademic.nic.in (PDF). See it in the full Sample paper 2026-27.
Hints
Open one hint at a time and try again before the next.
Hint 1
Which numbers can appear on a die?
Hint 2
What kind of event is 'getting 8', and what is its probability?
Step-by-step solution
Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.
A die shows only the numbers 1 to 6, so getting 8 is an impossible event. Hence A is true.
- 1 mark
R is true: an impossible event has probability 0. R explains why A is true. Option (A).
Answer: Option (A)
Where the marks are
- Identifies both statements as true and R as the correct explanation of A (1 mark)
Revise the chapter
- Chapter: Probability (notes, formulas, where marks are lost and every past question)
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The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.