Question

there are
five terms in an AP
the sum of these terms as 55. & the

fougth terims is five more than the
Sum of the first two teams . Find
the terms of API​

Answer 1

n=5, S5=55,

a4=a+a2+5

=>2a+2d=a+a+d+5

=>2a+2d=2a+d+5

=>2a-2a=d+5-2d

=>-d+5=0

=>d=5,

Sn=n/2(2a+(n-1)d)

=>55=5/2(2a+4*5)

=>55=5/2(2a+20)

=>2a+20=55*2/5

=>2a=22-20

=>a= 2/2= 1

=>a= 1

So the AP is 1,6,11,16,21

so this is your answer I hope it helps