1.

If \[\left( x-p+y-q \right)=8\]and \[\left( x\text{ }p+x\text{ }q+y\text{ }p+y\text{ }q \right)=16,\]then find the value of\[{{\left( x+y \right)}^{2}}+\]\[{{\left( p+q \right)}^{2}}\].

A. 96          
B. 64          
C. 48
D. 80
E. None of these
Answer» B. 64          


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