passpadi

2006

Mathematics

JAMB

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: 2/5

Explanation

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

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