Q: The average of twelve numbers is 55.5. The average of the first four numbers is 53.4 and that of the next four numbers is 54.6. The 10th number is greater than the 9th number by 3 but lesser than the 11th and 12th number by 2 and 3, respectively. What is the average of the 10th and the 12th numbers?
A.
59.5
B.
58
C.
56
D.
57.5
Correct Answer:
Option A -
Explanations:
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