Find the 20th term the last term of AP is 3,8,13-------,253

1.	Find the 20th term the last term of AP is 3,8,13-------,253
Answer» Use the formula {l-(n-1)d}253-19d =253-19×5 =253-95 = 158 A1( from last)-19d ............253-19(5)........253-95.........158 158......

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