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>> The average of non-zero number and its square is 5 times the number. The number is__________?
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Q. The average of non-zero number and its square is 5 times the number. The number is__________?
a.
9
b.
17
c.
29
d.
295
ANSWER: 9
Answer & Explanation
Let the number be x. Then,
(x + x2)/2 = 5x => x2 – 9x = 0
=> x(x – 9) = 0
=> x = 0 or x = 9
So, the number is 9
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