5+3 = 10, 7+4 = 35, 10+2 = 45, then 8+6 = ??​

5+3 = 10 means 5C3 = 10

7 + 4 = 35 means 7C4 = 35

10 + 2 = 45 means 10C2 = 45

Now 8 + 6 can be written as 8C6 = 8C2 = (8 * 7) / 2 = 28.

Therefore 8 + 6 = 28

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