please somebody help my Q 10

Answer:
The pressure of the gas will be increased to 450 kilo pascals.
Explanation:
Since the temperature is kept constant, the volume and pressure will be related by Boyle's Law.
According to the Boyle's Law, the product of pressure and volume of a gas remains constant provided that the temperature remains constant.
Mathematically this cab be expressed as:
[tex]P1V1 = P2V2[/tex]
Using the given values,
P1 = 300 kilo pascals
V1 =75 L
P2 = ?
V2 = 50 L
[tex]300 \times 75 = 50 \times P2\\ \\P2 = \frac{300 \times 75}{50}\\\\ P2= 450[/tex]
This means the pressure of the gas will be increased to 450 kilo pascals.