The average of 6 numbers is 12. What is the total sum of the numbers?
A 6
B 18
C 72
D 2
SAMPLE 2
The average of 6 numbers is 12. What is the total sum of the numbers?
A 6
B 18
C 72
D 2
SAMPLE 3
David took 5 tests. His scores for the first four tests were 78, 82, 90, and 88. If his average score for all 5 tests is 80, what was his score on the fifth test?
A 70
B 62
C 65
D 60
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