In a pocket there are as many as m red balls and 2m white balls. If three balls are taken at once and the chances of all red balls being taken are 1/55, then (1) The number of balls there are 5 pieces. (2) If three balls are taken, the chances of taking 1 white ball are 12/55. (3) If three balls are taken, chances are all cue balls are taken 7/55. (4) The total number of balls is 12. The appropriate statement is….

In a pocket there are as many as m red balls and 2m white balls.

If three balls are taken at once and the chances of all red balls being taken are 1/55, then

(1) The number of balls there are 5 pieces.

(2) If three balls are taken, the chances of taking 1 white ball are 12/55.

(3) If three balls are taken, chances are all cue balls are taken 7/55.

(4) The total number of balls is 12.

The appropriate statement is….

A. (1), (2), and (3) ONLY which are true

B. (1) and (3) ONLY correct

C. (2) and (4) ONLY correct

D. ONLY (4) is correct

E. ALL options are correct

jawaban;

C. (2) and (4) ONLY correct

penjelasan;

Banyak bola merah = m

Banyak bola putih = 2m

Maka banyak bola seluruhnya ada 3m