.) Two A.P.'s are given 9, 7, 5,and 24, 21, 18,. .. .If nth term of bo – InterviewSolution

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.) Two A.P.'s are given 9, 7, 5,and 24, 21, 18,. .. .If nth term of both theprogressions are equal then find the value of n and nth term

Answer»

nth term are equalso 9+(n-1)(-2)=24+(n-1)(-3)n-1=15so n=1616th term=9-30=-21

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