2018 · Q29
In the following table of inverse variation, what are the values of A, B and C respectively?
M: 15, -6, 2, C
N: -4, A, B, 60
Elementary MathematicsRatio and Proportion
- A10, -30, -1
- B10, -1, 30
- C-30, 10, -1
- D-1, -30, 10
Explanation
Inverse variation means M × N is constant: 15 × (−4) = −60. Hence A = −60/(−6) = 10, B = −60/2 = −30 and C = −60/60 = −1, option (A).