Question

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

Answer 1

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Answer 2

HERE IS UR ANSWER _______

AP : 253 , 248 , ... 3

a = 253 , d = -5

20th = a + 19 d

= 253 + 19 ( - 5 )

= 253 - 95

= 158 .