4. If in an A.P. S-p and S - mip, where S, denotes the sum of r terms – InterviewSolution

1.	4. If in an A.P. S-p and S - mip, where S, denotes the sum of r terms of theА.Р., then s, is equal to(a) (b) mnp (c) p(d) (m+ n) p
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