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WAEC Mathematics 2012 Objective — Question 8

Question 8 of 50 from the West African Examinations Council (WAEC) Mathematics 2012 Objective paper, with the correct answer and a full explanation.

Solve for x in the equation: 1/x + 2/3x = 1/3

A. 5Correct
B. 4
C. 3
D. 1

Explanation

1/x + 2/(3x) = 1/3. Combine: (3+2)/(3x) = 1/3, so 5/(3x)=1/3, 15=3x, x=5.

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