JAMB Mathematics 2001 Question 49

Question 49

Probability

Colour: Blue, Black, Yellow, White, Brown
No. of beads: 1, 2, 4, 5, 3
The distribution of colours of beads in a bowl is given above. What is the probability that a bead selected at random will be blue or white?

  1. A.1/15
  2. B.1/3
  3. C.2/5
  4. D.7/15
Show the answer and explanation

Answer: C (2/5)

Explanation

There are 15 beads, of which 1 + 5 = 6 are blue or white. The probability is 6/15 = 2/5.