Problem $1$

Companies sometimes use two burners as

fuel supply. One is fired with natural gas

and the other with fuel oil. Each furnace

has it's own oxygen supply. For a stack gas

output of $6205$kmo$\frac{l}{h}r$ dry stack ga$-$ hiow

much kmo$\frac{l}{h}r$ of natural gas was being

consumed for the analysis given? please provide full calculations