Matematika

Pertanyaan

Sasha has a bag with
· 5 black balls,
· 3 white balls, and
· 4 red balls.
If she takes a ball out of the bag without looking, what are her chances of getting a white ball?
A. 1 chance out of 3
B. 3 chances out of 9
C. 3 chances out of 12
D. 9 chances out of 12

2 Jawaban

  • Chapter : Chance
    Math : 9th grade

    sum of balls = 5 + 3 + 4  = 12 balls

    a chance of white ball = 3/12

    Answer : C
  • n(A) = 3
    n(S) = 5 + 3 + 4 = 12

    P = n(A) / n(S)
    P = 3/12

    3 chances out of 12 ( C )

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