Inverse and Direct Variation Word Problems - Examples

Hooke's Law states that the voltage $V$ across a resistor $R$ is related to the current $I$ by the equation $V=IR$. A $12$ volt battery is hooked up to a resistor with a resistance of $1.5$ ohms and a $24$ volt battery is hooked up to a resistor with resistance $6$ ohms. What is the ratio of current from the first scenario to the second scenario? ($\frac{I_{1}}{I_{2}}$)