In the figure on the right, please put the numbers $$\(1-11\)$$ in the eleven circles so that the three numbers in every straight line add up to 18 . What is the number in the middle circle? Note: There are 5 straight lines in total in this figure.
A.
6
B.
7
C.
8
D.
9
Exam No：2018 First Round Grade 4 Year：2018 Question No：4
Answer:
A
Knowledge points:
G4 - Arithmetic - Overlap Problems
Solution:
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