A) 234
B) 345
C) 456
D) 657
Correct Answer: D
Solution :
[a]\[2\xrightarrow{+1}3\xrightarrow{+1}4\] [b] \[3\xrightarrow{+1}4\xrightarrow{+1}5\] [c] \[4\xrightarrow{+1}5\xrightarrow{+1}6\] [d] \[6\xrightarrow{-1}5\xrightarrow{+2}7\] Hence, option [d] is the odd one.
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