A) \[56-8\]
B) \[121-7\]
C) \[147-21\]
D) \[168-24\]
Correct Answer: B
Solution :
\[56\to 8\times 7,\,\,\,121\to 11\times 11\] \[147\to 21\times 7,\,\,\,168\to 24\times 7\] All numbers except 121 are multiple of 7.
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