If y varies inversely as x and x = 3 when y =4. Find the value of x when y = 12
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Correct Answer: Option B
Explanation:
y = 1/x; y = \(\frac{k}{x}\)
k =xy→ 3 * 4 = 12
x =\(\frac{k}{y}\)
x =\(\frac{12}{12}\) = 1
y = 1/x; y = \(\frac{k}{x}\)
k =xy→ 3 * 4 = 12
x =\(\frac{k}{y}\)
x =\(\frac{12}{12}\) = 1