Which of the point P(5, -1), Q(3, -2) and R(1, 1) lie in the solution :

Which of the point P(5, -1), Q(3, -2) and R(1, 1) lie in the solution of the system of in equations (x + y) < and + 4 and (x – y) > and =2 ?
(a) Q and R only
(b) P and R only
(c) P and Q only
(d) P, Q and R

Anurag Mishra Professor Asked on 19th February 2016 in Maths.
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    Answer: (c) P and Q only

    Anurag Mishra Professor Answered on 19th February 2016.
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