Question
If $P(A) = \frac{4}{5}$ and $P(A \cap B) = \frac{7}{{10}}$, then $P(B/A)$ is equal to
- (a) $\frac{1}{{10}}$
- (b) $\frac{1}{8}$
- (c) $\frac{7}{8}$ ✓ Correct
- (d) $\frac{{17}}{{20}}$
Probability — Class 12 Maths Solution
Step-by-step Solution
$\therefore$ $P(B/A) = \frac{{P(A \cap B)}}{{P(A)}} = \frac{{7/10}}{{4/5}} = \frac{7}{8}$
NCERT & Exemplar solution for CBSE Class 12 Mathematics, Probability. Curated by Sachin Sharma. Free for all students.