Answer:
[tex]R= 960 \: Ohm[/tex]
Explanation:
P = 60 W
V = 240 V
[tex]P= VI[/tex]
[tex]\implies I= \frac{P}{V}[/tex]
[tex]\implies I= \frac{60}{240}[/tex]
[tex]\implies I= 0.25 A[/tex]
Now, by Ohms law
[tex]R= \frac{V}{I}[/tex]
[tex]\implies R= \frac{240}{0.25}[/tex]
[tex]\implies R= 960 \: Ohm[/tex]
