For the equilibrium:

CO(g) + 2 H2(g) ⇌ CH3OH(g)

Calculate the value of Kp given these equilibrium partial pressures: carbon monoxide, 0.272 atm; hydrogen, 0.608 atm; methanol,0.490 atm

I don't understand your problem? What is it you don't understand about this? Do you know how to write the Kp expression? Do you know an equilibrium constant is?