Find the positive number n such that thrice its... - JAMB Mathematics 1991 Question
Find the positive number n, such that thrice its square is equal to twelve times the number
A
1
B
2
C
3
D
4
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Correct Option: D
3n2 = 12n
= 3n2 - 12n = 0
= 3n(n - 4) = 0
∴ n = 4
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