If the partial pressure of the diatomic gas is 0.720 atm, what is the total pressure

If the partial pressure of the diatomic gas is 0.720 atm, what is the total pressure?

There is a total of 14 independently moving gas particles in this sample. Of those 14 particles, 3 are diatomic.

partial pressure of one species = molar fraction of that species x total pressure

so..
P diatomic = mole fraction diatomic x total pressure

rearranging
Ptotal = (0.720atm) / (3 / 14) = 3.36 atm