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WAEC Mathematics 2024 Paper

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Question : 13

Total: 50

A variable W varies partly as M and Partly inversely as P. Which of the following correctly represents the relation with k

_1

_2

constants?

W = $\frac{k_1M}{k_2P}$
W = ( $k_1 + k_2$ ) $\frac{\text{M}}{\text{P}}$
W = k $_1$ M + $\frac{k_2}{P}$
W = (k $_1 + k_2$ )M + P

Solution:

W ∝ M and W ∝ $\frac{1}{P}$

If a variable W varies partly as M and partly inversely as P, the relationship can be expressed as:

W = k $_1$ M + $\frac{k_2}{P}$

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