If `a_(1), a_(2), a_(3)`,... are in AP such that `a_(1) + a_(7) + a_(16) = 40`, then the sum of the first 15 terms of this AP is

If a_(1), a_(2), a_(3),…, a_(n) are in A.P such that a_(4) - a_(7) + a_(10)= m , then sum of the first 13 terms of the A.P is

If a_(1), a_(2), a_(3),........, a_(n) ,... are in A.P. such that a_(4) - a_(7) + a_(10) = m , then the sum of first 13 terms of this A.P., is:

If a_(1), a_(2), a_(3),........, a_(n) ,... are in A.P. such that a_(4) - a_(7) + a_(10) = m , then the sum of first 13 terms of this A.P., is:

It a_(1),a_(2),a_(3)...... terms of this A.P.such that a_(4)-a_(7)+a_(10), then the sum of first 13 terms of this A.P is

If a_(1),a_(2),a_(3)............ are in A.P. such that a_(4)-a_(7),+a_(10)=m, then sum of 13 terms of this A.P., is;

If a_(1),a_(2),a_(3), ……….. Are in A.P. such that a_(4)/a_(7) = 3/2 , then the 13^(th) term of the A.P. is …………..

If a_(1),a_(2),a_(3) ………are in A.P. such that (a_4)/(a_7)=(3)/(2) , then the 13^(th) term of the AP is ………….

Let a_(1), a_(2), a_(3), a_(4) be in A.P. If a_(1) + a_(4) = 10 and a_(2)a_(3) = 24 , them the least term of them is

if a_(1),a_(2),...a_(n) are in A.P with a_(1)+a_(7)+a_(16)=40. Then the volume of a_(1)+a_(2)+...a_(15) is

Let a_(1),a_(2),a_(3),...a_(n),......... be in A.P.If a_(3)+a_(7)+a_(11)+a_(15)=72, then the sum of itsfirst 17 terms is equal to: