Question

A bag contains 4 green
, 6 black and 7 white balls . A ball is drawn at a random . What is the probability that it is either green or a black ball?

Answer 1

Answer:

for a green ball the probability is 4/17

and the probability of a black ball is 6/17

for both green and black balls together, the probability is 19/17

Answer 2

Answer:

probability of getting green or black ball is 10/17 because probability means .... favourable event divided by total event .so....6+4/17=10/17