Question

find the middle terms of an A.P. 7,13,19,........241

Answer 1

✨ANSWER✨

A.P :-
7, 13, 19, .... 241

a = 7

d = 13 - 7
d = 6

Tn = 241
=> a + (n-1)d = 241

=> 7+(n-1)6 = 241

=> 7 + 6n - 6 = 241

=> 6n + 1 = 241

=> 6n = 241 - 1

=> 6n = 240

$n = \frac{240}{6}$
n = 40


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