Question

During holi festival, Sonali filled $7$ bottles with different coloured water - red, blue, green, pink, yellow, purple and orange. One bottle is selected at random. What is the probability of choosing the bottle with either red or green

Answer 1

The possible outcomes of $7$ different coloured bottles are {red, blue, green, pink, yellow, purple, orange}. Therefore, the number of possible outcomes are $7$.

Now, the possible outcome of getting either red or green coloured bottle is {red, green}, which means the number of favourable outcome is $2$.

Therefore, probability $P$ of getting either red or green coloured bottle is:

$P=\frac{2}{7}$

Hence, the probability of getting either red or green coloured bottle is $\frac{2}{7}$.