Post-UTME Physics 2011 Objective — Question 10

Question 10 of 16 from the Post-UTME Screening (Post-UTME) Physics 2011 Objective paper, with the correct answer and a full explanation.

Find the positive number n such that thrice its square is equal to 12 times the number.

A. 1
B. 2
C. 3
D. 4Correct

Explanation

3n^2=12n => n=4 (for n not equal to 0). (Note: this question is a near-duplicate of one found in the FUTO 2013/2014 Type D session in this same PDF set; the same independently-worked answer is used here.)

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