NECO Mathematics 2007 Objective — Question 51
Question 51 of 60 from the National Examinations Council (NECO) Mathematics 2007 Objective paper, with the correct answer and a full explanation.
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Table 3.1 shows votes on a proposal from three groups (In favour / Against): A: 6/5, B: 4/7, C: 10/3. If a student is chosen at random, what is the probability that the student is against the proposal?
- A. 4/7
- B. 1/3Correct
- C. 1/7
Explanation
Total in favour = 6+4+10=20. Total against = 5+7+3=15. Total students = 35. P(against) = 15/35 = 3/7; the source key lists the closest listed option, B.
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