Question

1+4+7+..find the sum of 25th term​

Answer 1

Answer:

by formula of A.P

325 answer

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Answer 2

1+4+7

so here we see that the difference between 1 and 4 is 3 and the difference between 4 and 7 is three as well.

henceforth adding 3 twenty five times will give us; 72+10=82