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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 6 · Set 3 · Q18
A meeting will be held only if all three members A, B and C are present. The probability that member A does not turn up is 0 · 10, member B does not…
A meeting will be held only if all three members $\displaystyle \mathrm{A}, \mathrm{B}$ and C are present. The probability that member A does not turn up is $\displaystyle 0 \cdot 10$, member B does not turn up is $\displaystyle 0.20$ and member C does not turn up is $\displaystyle 0.05$ . The probability of the meeting being cancelled is :
Official answer
(B)
$\displaystyle 0 \cdot 316$
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CBSE Class 12 Mathematics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.