Question

tell the answer of the question

Answer 1

Black 4
White 3
Total 14
Probability 7/14

Answer 2

The formula here used if of probabilit i.e., possible number of outcome upon total given amount.

Given,
Total no. of balls = 14
7 red, 4 black, 3 white

Probability of black or white ball =7/14 (4+3 =7)
i.e., 1/2.

So your answer is 1:2.


Hope it may helps you!