Question

write 3 different arithmetic sequence with sum of first 5 terms 50​

Answer 1

Let the first five terms of AP be :

(a-2d),(a-d),a,(a+d),(a+2d)

According to question,

a-2d+a-d+a+a+d+a+2d=60 (given)

=> 5a=60

=>a =12 and by hit and trial d=1 for sum of the series to. be 60.

So the required AP series would be,

(12–2×1),(12–1),12 ,(12+1),(12+2×1)

=10,11,12,13,14. Ans.