Mathematics

The table above shows the distribution of recharge cards of four major GSM operators. What…

The table above shows the distribution of recharge cards of four major GSM operators. What is the probability that a recharge card selected at random will be GTN or Qtel?
  • A.
    3/20
  • B.
    1/4
  • C.
    2/5
  • D.
    3/4
Correct Answer: Option C
Explanation

P(GTN) = 5/20
P(Qtel) = 3/20
∴P(GTN or Qtel) = (5/20) + (3/20)
= 8/20
= 2/5