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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` |
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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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