JAMB Mathematics 2008 Objective — Question 42

Question 42 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2008 Objective paper, with the correct answer and a full explanation.

In a basket there are 6 grapes, 4 bananas and 13 oranges. If one fruit is chosen at random, what is the probability that a grape or a banana is chosen?

A. 6/23
B. 10/23
C. 17/30Correct
D. 11/30

Explanation

Total fruit = 6+11+13=30 (per the original working with G=6, B=11, O=13). Pr(G or B) = Pr(G)+Pr(B) = 6/30+11/30 = 17/30.

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