The average of non-zero number and its square is 5 times the number. The number is_?
Verbal & Non Verbal Intelligence Test MCQs PDF / Verbal Intelligence Test MCQs — Multiple-choice practice
- A. 9
- B. 29
- C. 295
- D. 17
Correct answer
9
Explanation
Explanation (x + x²) / 2 = 5x Multiply both sides by 2: x + x² = 10x x² - 9x = 0 x(x - 9) = 0 So, x = 0 o r x = 9
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