In a certain school, 20% of students are below 8 years of age. The number of…
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In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is 2/3 of the number of students of 8 years of age which is 48. What is the total number of students in the school?
Answer: A. 100 — Students aged exactly 8 years old = 48. Students above 8 years old = (2/3) * 48 = 32. Total students aged 8 or older = 48 + 32 = 80. Since 20% of students are…
- A.
100
- B.
120
- C.
150
- D.
72
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Correct answer: A
Students aged exactly 8 years old = 48. Students above 8 years old = (2/3) * 48 = 32. Total students aged 8 or older = 48 + 32 = 80. Since 20% of students are below 8, the remaining 80% are aged 8 or older. Total students = 80 / 0.80 = 100.
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