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
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
y = 1/x; y = \(\frac{k}{x}\)
k =xy → 3 * 4 = 12
x = \(\frac{k}{y}\)
x = \(\frac{12}{12}\) = 1
Source: Myschool Past Questions Archive (Record #64392)