Question

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

Answer 1

$\huge\mathbb\fcolorbox{black}{lavenderblush}{Good Afternoon♡♡}$

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