(c) The number inside the circle is obtained by multiplying the sum of upper number, the lower number and the number corresponding to the position of the letter in English alphabet, by the number on the right and then subtracting the number on the left from the product. Thus,we have (2+C+5)x3−4=(2+3+5)x3−4=26; (4+4+4)x5−10=(4+8+4)x5−10=−70∴(8+J+6)x?−6=9096 => (8+10+6)x?=96=>?>