Toys for a boy

[singhsa]

Some toys include large, middle, and small model with red, yellow, green, or blue color. If numbers of all model-color combinations are the same, for example, number of red large toys is equal to number of green little toys. A boy wants a red-large toy. If his mother select one for him at random, what is the probability that at least one of the color and model will satisfy the boy?

OA - [spoiler]1/2[/spoiler]

[sgmuthukumar]

Some toys include large, middle, and small model with red, yellow, green, or blue color. If numbers of all model-color combinations are the same, for example, number of red large toys is equal to number of green little toys. A boy wants a red-large toy. If his mother select one for him at random, what is the probability that at least one of the color and model will satisfy the boy?

OA - [spoiler]1/2[/spoiler]

1/12

[saurabhmahajan]

total combinations would be 12 (3 sizes * 4 colors)
out of these to satisfy the boy the mother has 6 choices

red-large
red-middle
red-small
large-yellow
large-green
large- blue

therefore the probability will be 6/12 = 1/2