Which one will replace the question mark ?
12
13
14
15
Correct Answer :
D. 15
Sum of numbers in lower half of the circle = 11 + 9 + 3 + 7 = 30
Sum of numbers in upper half of the circle = ? + 4 + 5 + 6 = ? + 15
Upper half = Lower half
30 = ? + 15
? = 30 - 15
? = 15.
Threfore, 15 is the answer.
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