Question

Find the sum of first 25 terms of the A.P 30,26,22​

Answer 1

Answer:

-450

Step-by-step explanation:-

a=30  d= -4

n/2{2a+(n-1)d}

25/2{2*30+24*-4}

25/2*-36

-450

Answer 2

Hope this solution help you.