If every car sold last week at a certain used-car dealership was either a coupe or a sedan, what was the average (arithmetic mean) sale price for all the cars that were sold at the dealership last week?
(1)The average sale price for the sedans that were sold at the dealership last week was $10,600.
(2)The average sale price for the coupes that were sold at the dealership last week was $8,400.
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
can i devide the sum of two means by 2 to get a new mean？
OA（E）
(1)The average sale price for the sedans that were sold at the dealership last week was $10,600.
(2)The average sale price for the coupes that were sold at the dealership last week was $8,400.
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
can i devide the sum of two means by 2 to get a new mean？
OA（E）
it is not an "alice in wonderland". it is real! i am going to freak GMAT out!
