A) \[\text{x}=\text{9},\text{y}=\text{5}\]
B) \[\text{x}=\text{5},\text{y}=\text{9}\]
C) \[\text{x}=\text{9,y}=\text{9}\]
D) \[\text{x}=\text{5,y}=\text{5}\]
Correct Answer: A
Solution :
[a] The given pair of equations is |
\[x+y=14\] ...(I) |
and \[x-y=4\] ...(2) |
On adding eqs. (1) and (2), we get |
\[2x=18\Rightarrow x=9\] |
Substituting the value of x in eq. (1), we get |
\[y=14-9=5\] |
Hence. \[x=9,\,\,y=5\] |
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