Answer:
The probability of a successful event is the ratio of the number of successful events to the total number of events. In this case, a successful event is selecting a red marble from the box. The total number of events is the total number of marbles in the box:
Red marbles/Total number of marbles
4/12 divide
=1/3
X
X+2
X+4
Those are 3 consecutive odd integers
17 out of 20 is 85 percent.
Sorry it doesn’t let me press the attachment, therefore I can’t help