Question

A bag contains 7red balls,5qhite balls,6black balls.A ball is drawn from bag
at random.find the probability that the ball is drawn.
1)Not black.
2)Red ball​

Answer 1

total number of balls = 18

1) the probability of not getting black ball is.

$\frac{12}{18} = \frac{6}{9} = \frac{2}{3}$

2) the probability of getting red ball is.

$\frac{7}{18}$