Answer :
According to Gay lussac's law
[tex]\\ \rm\Rrightarrow P\propto T[/tex]
- Pressure is directly proportional to temperature
- Temperature is constant so no use of this
But according to Boyles law
[tex]\\ \rm\Rrightarrow P\propto \dfrac{1}{V}[/tex]
If volume is decreased by 4 times then pressure is increased by 4times