First slide

Theorems of probability

Question

In a town 40% people read Eenadu. 25% people read Jyothi and 15% people read both. A person chosen at random from the town. The probability that the person chosen read Jyothi but not Eenadu is

Easy

A

$\frac{1}{10}$
B

$\frac{1}{5}$
C

$\frac{1}{20}$
D

$\frac{1}{2}$

Solution

$n (S) = {}^{100}C_{1} = 100$
$n (J \cap \bar{E}) = {}^{10}C_{1}$ =10
$∴ P (A) = \frac{10}{100} \Rightarrow \frac{1}{10}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App