Question

Find the 20 term from last trrm of ap 3,8,13...253? Answer

Answer 1

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Answer 2

Answer:

Step-by-step explanation:

Hi a=3 d=5 l=253

L=a+ (n-1)d

253=3+(n-1)d

(n-1)5= 250

N=51

32 term from first is 20 term from last

So find 20 term from first

A20=3+19×5

=98