Question

there are 3 red balls, 2 white balls and 5 green balls in a bag what is the probability of picking not a red ball​

Answer 1

Answer:

there is a 7/ 10 chance of not getting a red ball

Answer 2

Total number of balls = 3+2+5 = 10 balls.

Probability (Red Ball) =

$\frac{3}{10}$

So , the probability ( not picking a red ball)

= 1 - probability (picking red ball)

$1 - \frac{3}{10} \\ \\ \frac{10 - 3}{10} \\ \\ \frac{7}{10}$