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  1. If 999x + 888y = 1332 888x + 999y = 555, then the value of x + y is
    1. 888
    2. 555
    3. 1
    4. 999
Correct Option: C

999x + 888y = 1332
888x + 999y = 555
On adding,
1887x + 1887y = 1887
⇒  1887 (x + y) = 1887

⇒  x + y =
1887
 = 1
1887


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