1.

If `x` and `y` satisfy the equation `y = 2[x]+9` and `y = 3[x+2]` simultaneously, the `[x+y]` is (where `[x]` is the greatest integer function)A. `21`B. `18`C. `30`D. `12`

Answer» Correct Answer - B
If `x` and `y` satisfy ………..
`y = 2[x]+9, y=3[x+2]=3[x]+6`
`:. [x]=3, y = 15`
`:. [x+y]=[x]+y=18`


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