एक समांतर श्रेढ़ी में , `S _(p ) = q ,s _(q ) =P ` तथा इसके प्रथम r - पदों का योगफल S _(r ) है तो `S _(p+q) = `

If p /q = r/s , then ((p +q)/( r + s )) = ?

If p + r = 2q and 1/q + 1/s = 2/r , then prove that p : q = r : s .

Among five rods P, Q, R, S and T, S is lengthier than T. R is shorter than P. Q is lengthier than S. P is lengthier than only one rod. Which rod is second lengthiest among all the rods? पांच छड़ों - - P, Q, R, S और T में से, S, T से लंबा है | R, P से छोटा है | Q, S से लंबा है| P केवल एक ही छड़ से लंबा है | सभी छड़ों में दूसरा सबसे लंबा छड़ कौन सा है ?

If p, q, r, s are in G.P. then show that (q -r )^(2) + ( r -p) ^(2) + ( s-q) ^(2) = ( p -s) ^(2)

What should come next in the following letter series ? P Q P Q R P Q R S P Q R S T P Q R S T L P Q R S T U V P Q R S T

if P,q, r, s in R such that p r= 2 ( q+ s) then

in an AP , S_p=q , S_q=p and S_r denotes the sum of the first r terms. Then S_(p+q)=

in an AP,S_(p)=q,S_(q)=p and S_(r) denotes the sum of the first r terms.Then S_(p+q)=