John Has Six Bills of Paper Money in the Following

Multiple Choice

John has six bills of paper money in the following denominations: $1, $5, $10, $20, $50, and $100 If he selects 3bills at a time what is the probability of selecting a group that has an average value of equal to or less than $25?

A) 0.45
B) 0.86
C) 0.50
D) 0.35