If 60 # 40 = 10, 40 # 20 = 6 and 60 # 90 = 15, then ﬁnd the value of – McqOptions

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1.	If 60 # 40 = 10, 40 # 20 = 6 and 60 # 90 = 15, then ﬁnd the value of 40 # 30 = ?
A.	15
B.	12
C.	18
D.	7
Answer» E.

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