JSCE Mathematics 2022 Objective — Question 27
Question 27 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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The average age of 8 girls is 15 and the average age of 6 girls is 13. Find the age of the other two girls with equal age.
- A. 42 years
- B. 24 years
- C. 21 yearsCorrect
- D. 14 years
Explanation
Total = 8 × 15 = 120. Six girls = 6 × 13 = 78. Other two = 42, so each is 21 years.
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