Answer:
8 ohms
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 either of the given conditions
y = 10 when x = 12 or y = 5 when x = 24, hence
k = 10 × 12 = 120
y = [tex]\frac{120}{x}[/tex] ← equation of variation
when x = 15, then
y = [tex]\frac{120}{15}[/tex] = 8
