[" 108.Let "a_(1),a_(2),a_(3),...,a_(100)" be an arithmetic progression with "],[a_(1)=3" and "S_(p)=sum_(i=1)^(p)a_(i),1<=p<=100." For any integer "n],[" with "1<=n<=20," let "m=5n." If "(S_(m))/(S_(n))" does not depend on "n,],[" then "a_(2)" equals "],[[" (a) "6," b."5],[" c."7," b."5]]

Let a_(1), a_(2), a_(3),..., a_(100) be an arithmetic progression with a_(1) = 3 and S_(p) = sum_(i=1)^(p) a_(i), 1 le p le 100 . For any integer n with 1 le n le 20 , let m = 5n . If (S_(m))/(S_(n)) does not depend on n, then a_(2) is equal to ....

Let a_(1),a_(2),a_(3),...,a_(100) be an arithmetic progression with a_(1)=3 and s_(p)=sum_(i=1)^(p)a_(i),1<=p<=100. For any integer n with 1<=n<=20, let m=5n If (S_(m))/(S_(n)) does not depend on n, then a_(2)

Let a_(1),a_(2),a_(3)... and b_(1),b_(2),b_(3)... be arithmetic progressions such that a_(1)=25,b_(1)=75 and a_(100)+b_(100)=100 then the sum of first hundred terms of the progression a_(1)+b_(1)a_(2)+b_(2) is

Let a_(1), a_(2), a_(3).... and b_(1), b_(2), b_(3)... be arithmetic progression such that a_(1) = 25, b_(1) = 75 and a_(100) + b_(100) = 100 . Then

If a_(1),a_(2),a_(3),..., are in arithmetic progression,then S=a_(1)^(2)-a_(2)^(2)+a_(3)^(2)-a_(4)^(2)+...-a_(2k)^(2) is equal

Let a_(1),a_(2),a_(3),...,a_(101) are in G.P.with a_(101)=25 and sum_(i=1)^(201)a_(1)=625. Then the value of sum_(i=1)^(201)(1)/(a_(1)) equals

If a_(1),a_(2),...,.,a_(10) are positive numbers in arithmetic progression such that (1)/(a_(1)a_(2))+(1)/(a_(2)a_(3))+...*+(1)/(a_(9)a_(10))=(9)/(64) and (1)/(a_(1)a_(10))+(1)/(a_(2)a_(9))+......(1)/(a_(10)a_(1))=(1)/(10)((1)/(a_(1))+...+(1)/(a_(10))) then the value of (2)/(5)((a_(1))/(a_(10))+(a_(10))/(a_(1))) is