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Previous Year Question (PYQs)

An arithmetic progression has 3 as its first term. Also, the sum of the first 8 terms is twice the sum of the first 5 terms. Then what is the common difference?




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Dushyant Kumar-pic
Dushyant Kumar , Student
Commented Jun 15 , 2021
if T1=3 then (T1+T2+....+T8)=2(T1+T2+...+T5) then n/2(2a+(n-1)d)=2(n/2(2a+(n-1)d) T1=a=3 then we put the value of a in the equation d=3/4 That is the answer.

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