Answer: Option B
Explanation:
(10 + 9 + 14 + 7)/2 = 20
and (11 + 16 + 10 + 13)/2 = 25
Therefore, (15 + ? + 12 + 10)/2 = 22
Hence 37 + ? = 44
? = 44 - 37
? = 7.
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