Question #11700089

# Mary is twice as likely to randomly pick a blue marble from a bag as she is to pick a red marble.?

**Mary is twice as likely to randomly pick a blue marble from a bag as she is to pick a red marble.If there are x red marbles and the bag contains 40 marbles, whis is the probability that Mary will pick a blue marble from the bag?
a. 16/40
b. x/10
c. x/20
d. x/40
e. 40-x/40
please answer and explain
**

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