George's car calls for 8 ounces of oil for each cylinder used. His car's engine has 6 cylinders. If 16 ounces of oil has already been put into the engine used, then how many additional ounces of oil are needed?
Choose the correct choice from the following answers: A) 16 B) 48 C) 64 D) 32 E) 8
Number of ounces per cylinder 8   Number of cylinders 6   Ounces needed 48   Ounces used 16   Answer 32
<result>D</result>
George's car calls for 8 ounces of oil for each cylinder used. His car's engine has 6 cylinders. If 16 ounces of oil has already been put into the engine used, then how many additional ounces of oil are needed?