2+7=34,8+9=18,6+3=78,then 5+7=?

Answers (1)

Logic in this series is

2+7=(10	imes2)+(2	imes7)=34

8+9=(10	imes9)-(9	imes8)=18

6+3=(10	imes6)+(6	imes3)=78

5+7=(10	imes7)-(7	imes5)=35

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