CBSE 2025 · Region 1 · Set 1 · Q31 · 3 marks
Two dice are thrown at the same time. Determine the probability that the difference of the numbers on the two dice is $\displaystyle 2$ .
Marking-scheme solution
Total outcomes = $\displaystyle 36$
Number of Outcomes with difference of the numbers on the two dice is \(\displaystyle 2=8\)
\[(1,3)(3,1)(4,2)(2,4)(5,3)(3,5)(4,6)(6,4)
\]
\(\displaystyle P(\) difference of the numbers on the two dice is $\displaystyle 2$\(\displaystyle )=\frac{8}{36}\) or \(\displaystyle \frac{2}{9}\)
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CBSE Class 10 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.