New pressure of a gas when the volume changes at const Temperature

[mrcotton]

Homework Statement

Homework Equations

At constant temperature
then P1V1=P2V2

The Attempt at a Solution

This is my attempt at the solution

however the mark scheme says

Any help appreciated?
I just can't see what I am not seeing?

 

[Andrew Mason]

I think there is a typo in the question. The volume in the bottle is much greater than the volume in the pump chamber in this diagram. I suspect that the questioner intended the volume of space in the pump chamber to be 6.5 x 10^-5 m³ (.065 l). If that were the case, the given answer is correct.

AM

 

[mrcotton]

Andrew your a star, I would never have seen that.
Thanks again for your help
D