Question

A large bag of marbles contains an equal amount of red, orange, yellow, blue, and green marbles. Jaden randomly selects 1 marble from the bag. Which of the following represents the probability of selecting a red, blue, or yellow marble?

A. 0.5
B. 0.4
C. 0.3
D. 0.6

Answer 1

Option D

0.6

Explanation:

Given that there are 5 colour marbles in a large bag.

The colours are red, orange, yellow, blue and green.

Also given that there are equal amounts of each colour

Let n be the no of marbles of each colour.

Then total no of marbles = 5(n) = 5n

No of red,blue and yellow marbles = n+n+n = 3n

Prob of drawing a red or blue or yellow = P(red)+P(blue)+P(yellow)

=
`(n)/(5n) +(n)/(5n) +(n)/(5n)  = (3n)/(5n)`

= 0.60