Find 20th term from the last term AP 3,8,13.........253

1.	Find 20th term from the last term AP 3,8,13.........253
Answer» Given that:a=3d=5l=253Now, A20=l-(n-1)d =253-(20-1)×5 =253-95 =158 So 20th term of AP is 158.

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