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← Bihar Board Class 12 PYQ
Probability
Bihar Board Class 12 · Mathematics · 53 past questions
Topic
Equally likely outcomes with coins, dice and cards
3
Conditional probability
2
Basic probability and addition theorem
1
Independent events and multiplication theorem
1
Random variables and probability distributions
1
Word problems on truth-telling, survival and bags
0
Level
Easy
1
Moderate
1
Tough
0
Year
2026
2
2025
5
2024
2
2023
1
2021
1
2019
0
2018
1
2017
0
2016
0
2015
0
2 of 53 ·
show all
Q28
2024 Set D
2024 Set J
$P(A)=\frac{1}{3},\ P(B)=\frac{1}{4},\ P(A \cap B)=\frac{1}{5} \Rightarrow P(B/A) =$
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Q29
2024 Set D
2024 Set J
Evaluate $P(A \cup B)$ if $2P(A) = P(B) = \frac{5}{13}$ and $P(A/B) = \frac{2}{5}$.
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