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Question


(12345679 x 72) = ?

Options:
A .  88888888
B .  888888888
C .  898989898
D .  9999999998
Answer: Option B

12345679 x 72
= 12345679 x (70 +2)
= 12345679 x 70 + 12345679 x 2
= 864197530 + 24691358
= 888888888

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