If 19 $ 7 = 312 and 23 $ 9 = 448, then31 $ 11 = ? – McqOptions

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1.	If 19 $ 7 = 312 and 23 $ 9 = 448, then31 $ 11 = ?
A.	231
B.	441
C.	641
D.	840
Answer» E.

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