(3 - 12) , (4 - 20) , (6 - 42) , (7 63)
Option:
Justification: In all other pairs, (1st number) × (1st number + 1) = 2nd number.
Choose or find odd number pair
A. 3 - 12
B. 4 - 20
C. 6 - 42
D. 7 63
Answer: D . 7 - 63
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