EXPLANATION
The composition is:
34% of Gasoline
14% of Kerosene
The percentage of kerosene is 14%
The production of kerosene = 14% of 60 = 14/100 x 60 = 8.4 barrels
The percentage of Gasoline is 34%
The production of Gasoline = 34% of 60 = 34/100 x 60 = 20.4 barrels
So, the total production of Kerosene + Gasoline is 8.4 barrels + 20.4 barrels = 28.8 barrels
Thus, the total production of gasoline and kerosene combined in barrels is 28.8 Million of barrels.