Question

In a city $20$% of people watch star news, $40$% star plus, $10$ % star sports and remaining watch discovery. If there is electricity in only $1$ house. What is the probability that star news is being watched.

• A. $0.5$
• B. $0.4$
• C. $0.2$
• D. $0.1$

Answer 1

The correct option is C $0.2$

Lets assume that total Population of city is $100$.

People who watch,

Star News: $20$

Star Plus: $40$

Star Sports: $10$

Discovery: $100-20-40-10=70$

Probability that star news is being watched $=\frac{20}{100}=\frac{2}{10}=0.2$