Find the `20^(t h)`term from the last term of the AP : 3, 8, 13, . . , 253.

Explanation

The formula for nth term of an AP is `a_n = a + (n - 1) d`


Here, `a_n` is the nth term, a is the first term, d is the common difference and n is the number of terms.


Given A.P. is `3, 8, 13, ..., 253`


As the 20th term is considered from last, so `a = 253`


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