A) 6
B) 5
C) 8
D) 7
E) None of these
Correct Answer: A
Solution :
Explanation Option [a] is correct. The series is formed as follows: (i) \[\left( 2+3+4 \right)\left( 2+5+7 \right)=9~\times 14=126\] (ii) \[\left( 5+4+3 \right)\left( 3+8+7 \right)=12\times ~18=216\] (iii) \[\left( 1+5+6 \right)\left( 6+4+2 \right)=12~\times 12=144\]
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