Question

An opaque bag contains 5 green marbles, 3 blue marbles, and 2 red marbles. If a marble is drawn at random what are the ODDS of drawing a red marble?

A 1:2

B 1:4

C 1:5

D 4:5

Answer 1

If you add all of the marbles(10) and then chose the red(2) and make it a fraction 2/10, then reduce it by dividing the numerator and denominator by the same number (2) the the answer is C) 1:5

Answer 2

2 : 5 + 3 + 2

2 : 10

Simplifies to 1 : 5