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JSCE Mathematics 2024 Objective — Question 22

Question 22 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2024 Objective paper, with the correct answer and a full explanation.

Given that V = 2R/(R-C), make "R" the subject of the formula

A. R = V/(C(V-2))
B. R = C/(V(V-2))
C. R = V/(CV-2C)
D. R = CV/(V-2)Correct

Explanation

V(R - C) = 2R, so VR - VC = 2R. VR - 2R = VC, R(V - 2) = VC, R = CV/(V - 2).

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