Answer:
y = [tex]\frac{36}{121}[/tex]
Step-by-step explanation:
Given that y varies inversely as x then the equation relating them is
y = [tex]\frac{k}{x}[/tex] ← k is the constant of variation
To find k use the condition y = 18 when x = 4
k = yx = 18 × 4 = 72, so
y = [tex]\frac{72}{x}[/tex] ← equation of variation
When x = 242, then
y = [tex]\frac{72}{242}[/tex] = [tex]\frac{36}{121}[/tex]
