The names, or notes, of all the white keys on a piano are written on pieces of paper and placed in a cup. There are 7 sets of the notes D, E, F, and G and 8 sets of the notes A, B,and C. If a person draws one note out of the cup without looking, what are his or her chances of getting a C

Answer 1

total notes: 7*4 + 8*3 = 52
total C's: 8

so, . . .

Answer 2

15%