1952 AMC 12 Question 20
AMC12 · 1952 AMC 12
If $\dfrac xy=\dfrac34,$ then the incorrect expression in the following is:
$\dfrac{x+y}{y}=\dfrac74$
$\dfrac{y}{y-x}=\dfrac41$
$\dfrac{x+2y}{x}=\dfrac{11}3$
$\dfrac{x}{2y}=\dfrac38$
$\dfrac{x-y}{y}=\dfrac14$