ANSWER:
The 100-ohm resistor
STEP-BY-STEP EXPLANATION:
Ohm's law is as follows:
[tex]V_n=R_n\cdot I[/tex]The current is always the same in the series circuit, therefore we can determine that it is equal to 1, so we calculate the voltage in each case:
[tex]\begin{gathered} V_1=R_1\cdot1=60\cdot1=60\text{ V} \\ V_2=R_2\cdot1=100\cdot1=100\text{ V} \end{gathered}[/tex]Therefore the 100-ohm resistor has a higher voltage.