The sum of 19 terms for AP. `a_(1),a_(2),....a_(19)` & given `a_(4)+a_(8)+a_(12)+a_(16)=224,` is

The successive terms of an A.P.are a_(1),a_(2),a_(3),... .If a_(6)+a_(9)+a_(12)+a_(15)=20, then sum_(r=1)^(20)a_(r)

The successive terms of an A.P. are a_(1), a_(2), a_(3) ,….. If a_(6)+a_(9)+a_(12)+a_(15)=20 then sum_(r=1)^(20)a_(r) =

Find the sum of first 24 terms of the A.P.a_(1),a_(2),a_(3),..., if it is know that a_(1)+a_(5)+a_(10)+a_(15)+a_(20)+a_(24)=225

(i) Find the sum of first 24 terms of the A.P.a_(1),a_(2),a_(3),...... if it is know that a_(1)+a_(5)+a_(10)+a_(15)+a_(20)+a_(24)=225

Let numbers a_(1),a_(2)...a_(16) are in AP and a_(1)+a_(4)+a_(7)+a_(10)+a_(13)+a_(16)=114 then a_(1)+a_(5)+a_(12)+a_(16)+a_(16) is equal to

Find the sum of first 24 terms of the A.P. a_(1) , a_(2), a_(3) ...., if it is know that a_(1) + a_(5) + a_(10) + a_(15) + a_(20) + a_(24) = 225

Find the sum of first 16 terms of an A.P.a_(1),a_(2),a_(3)......... If it is known that a_(1)+a_(4)+a_(7),+a_(10)+a_(16)=147

Find the sum of first 24 terms of the A.P.a-1,a_(2),a_(3),... if it is inown that a_(1)+a_(5)+a_(10)+a_(15)+a_(20)+a_(24)=225