Q: The average of eleven numbers is 56. The average of first three numbers is 52 and of next five number is 60. 9th and 10th numbers are 3 and 1 more then 11th respectively. Find the average of 9th and 11th numbers?
A.
54
B.
53.5
C.
52.5
D.
52
Correct Answer:
Option B -
Explanations:
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