How Much Sulfur and Carbon Are in a 5g Mixture Producing 15g of SO2 and CO2?

[estu2]

5 gram of mixture which composed from
carbon oxygen and sulfur
produce a 15 gram mixture of
SO2 and and CO2
calculate the mass of the sulfur and carbon in the mixture
?

i made an equalized equation
but the is no moles data

 

[Fightfish]

How can the 5g mixture of reactants produce 15g of products?
I think you need to be more clear in your problem description.