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Answer

Correct Option is Either (a) or (c)

Solution:In row 1, even number is followed by even number= 1+2+1+8=3
In row 2, odd number is followed by even number= 13+2=15
Odd number is followed by even number= 15+10=25
Resultant of row 1 is 106-25=81. So, M will be either 78 or 27.

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