Question on: JAMB Mathematics - 2009

If m (\ast) n = n-(m + 2) for any real numbers m and n, find the value of 3 (\ast) (-5)

A
-6
B
-8
C
-10
D
-12
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Correct Option: C

If m x n = n

= n - (m + 2)

3 (\ast) (-5) = -5 - (3 + 2)

= -5 - 5

= -10

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