If 9 & 4 = 50, 3 & 7 = -40 and 7 & 5 = 20, then ﬁnd the value of 4 & – McqOptions

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1.	If 9 & 4 = 50, 3 & 7 = -40 and 7 & 5 = 20, then ﬁnd the value of 4 & 5 = ?
A.	80
B.	-10
C.	20
D.	-80
Answer» C. 20

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