A) 21
B) 9
C) 30
D) 12
Correct Answer: C
Solution :
\[y=2[x]+3=3[x-2],\]\[\Rightarrow \]\[2[x]+3=3[x]-6\Rightarrow [x]=9\] |
\[\therefore \]\[y=2[x]+3=21\] |
\[\therefore \]\[[x+y]=[x+21]\] |
\[=[x]+21=9+21=30\] |
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