If `a ,b ,c` are in A.P., the `a/(b c),1/c ,1/b` will be in a. A.P b. G.P. c. H.P. d. none of these

If a,b,c are in A.P ,then 3^(a),3^(b),3^(c) shall be in (A) A.P (B) G.P (C) H.P (D) None of these

I the lines a x+12 y+1=0,\ b x+13 y+1=0 and c x+14 y+1=0 are concurrent, then a , b , c are in a. H.P. b. G.P. c. A.P. d. none of these

If the numbers p,q,r are in A.P. then m^(7p), m^(7q), m^(7r)(mgt0) are in (A) A.P. (B) G.P. (C) H.P. (D) none of these

If x,y,z are in A.P. then : yz,zx,xy are in (a) A.P (b) G.P (c) H.P (d) no definite sequence

If xgt1,ygt1,zgt1 are in G.P. then 1/(1+Inx), 1/(1+Iny), 1/(1+Inz) are in (A) A.P. (B) H.P. (C) G.P. (D) none of these

If the square of differences of three numbers be in A.P., then their differences re in (A) A.P. (B) G.P. (C) H.P. (D) none of these

If a,b,c are in A.P. as well as in G.P. then

If a,b,c are in G.P.and a^(1/x)=b^(1/y)=c^(1/z) then xyz are in AP(b)GP(c)HP(d) none of these

If a^(2),b^(2),c^(2) are in A.P. ,then show that b+c,c+a,a+b are in H.P.

If a,b,c are in A.P. b, c,d are in G.P. and c,d,e are in H.P., then which one of the following is true :