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Question Number 116259 by Khalmohmmad last updated on 02/Oct/20

Answered by TANMAY PANACEA last updated on 02/Oct/20

$$a+a+4d=30consideringA.Pseries$$$$a+2d+a+6d=120$$$$8d+30-4d=120$$$$d=\frac{90}{4}=\frac{45}{2}$$$$2a+90=30$$$$a=-30$$$$a_1=a=-30$$

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