Question

A bag contains 10 red marbles , 15 yellow marbles and 5 green marbles . what is the probability of drawing a red or green marble from the bag ?

a) 1/2
b) 1/4
c) 1/6
d) 1/8

Answer 1

a because 15/30 simplified is 1/2

Answer 2

A. 1/2 because 10+15+5 = 30 and then 5 green marbles plus 10 red marbles is 15 and 15 is half of 30 which means 15/30 then simplified is 1/2