Let the positive numebrs a,b,c,d be in A.P. Then `abc,abd,acd,bcd` re (A) not in A.P., G.P., H.P. (B) in A.P. (C) in G.P. (D) in H.P.

Let the positive numbers a,b,c,d be in A.P. Then abc,abd, acd, bcd are :

Let the positive numbers a, b, c, d be in A.P. Then abc, abd, acd, bcd are:

Let the positive numbers a ,b ,ca d nd be in the A.P. Then a b c ,a b d ,a c d ,a n db c d are a. not in A.P. /G.P./H.P. b. in A.P. c. in G.P. d. in H.P.

Let the positive numbers a ,b ,ca d nd be in the A.P. Then a b c ,a b d ,a c d ,a n db c d are a. not in A.P. /G.P./H.P. b. in A.P. c. in G.P. d. in H.P.

If four positive numbers a, b, c and d are in A.P. then prove that abc, abd, acd and bcd are in H.P.

If a , b ,a n dc are in G.P., then a+b ,2b ,a n db+c are in a. A.P b. G.P. c. H.P. d. none of these

If a, c, b are in A.P. and b, c, d are in G.P. prove that, b, (b-c), (d-a) are in G.P.

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 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