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Mathematics · 2025 · 2 marks
CBSE 2025 · Region 4 · Set 2 · Q22
Saima and Aryaa were born in the month of June in the year 2012. Find the probability that: (i) they have different dates of birth. (ii) they have…
Saima and Aryaa were born in the month of June in the year 2012. Find the probability that :
(i)
they have different dates of birth.
(ii)
they have same date of birth.
Marking-scheme solution
Number of days in June $\displaystyle 2012$ = $\displaystyle 30$
(i) \(\displaystyle \mathrm{P}\) (different dates of birth) \(\displaystyle =\frac{29}{30}\)
(ii) \(\displaystyle \mathrm{P}\) (same date of birth) \(\displaystyle =\frac{1}{30}\)
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CBSE Class 10 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.