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Choose or find odd number pair

(16 - 64) , (9 - 36) , (36 - 216) , (49 - 343)

Option:
A. 16 - 64
B. 9 - 36
C. 36 - 216
D. 49 - 343
Answer: B . 9 - 36

Justification: All other pairs contain square and cube of the same number. e.g. 36 = 6² & 216 = 6³.

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