Chemistry question about moles and pressure?

A steel cylinder contains 5.00 moles of graphite (pure carbon) and 5.00 moles of O2. The mixture is ignited and all the graphite is reacted. The combustion produces a mixture of CO and CO2 gas. After the cylinder has cooled to its original temperature, it is found that the pressure of the cylinder has increased by 17.0%. Calculate the mole fractions of CO2, CO and O2 in the the final gaseous mixture.