If y varies inversely as x and x 3 when y 4 Fin... - JAMB Mathematics 2022 Question
If y varies inversely as x and x = 3 when y =4. Find the value of x when y = 12.
A
4
B
1
C
2
D
3
correct option: b
Given that y is inversely proportional to x,
y = 1/x; y = \(\frac{k}{x}\)
k =xy → 3 * 4 = 12
x = \(\frac{k}{y}\)
x = \(\frac{12}{12}\) = 1
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