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    lionel messi's Avatar
    lionel messi Posts: 35, Reputation: 1
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    #1

    Jul 22, 2012, 09:49 PM
    Sequences and series...
    Let a1,a2,a3,a4,a5 be such that a1,a2,a3 are in A.P... a2,a3,a4 are in G.P and a3,a4,a5 are in H.P.then a1,a3,a5 are in..
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jul 22, 2012, 11:36 PM
    Did you attempt it?
    lionel messi's Avatar
    lionel messi Posts: 35, Reputation: 1
    Junior Member
    		  
    #3

    Jul 23, 2012, 06:17 AM
    Yes but its useless to show it... :p.. can u please solve?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #4

    Jul 23, 2012, 09:02 AM
    Nope, it's not useless to show it. Someone might actually point out where you went wrong.
    lionel messi's Avatar
    lionel messi Posts: 35, Reputation: 1
    Junior Member
    		  
    #5

    Jul 23, 2012, 09:38 PM
    Actually I've done it now :D
    Let the 5 nos are 1,2,3,9/2,9. here a1a2a3 are in a.p ,a2a3a4 are in g.p ,a3a4a5 are in h.p. so a1a3a5 are in 1,3,9 in g.p... ye it wasn't USELESS ;P
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #6

    Jul 23, 2012, 11:40 PM
    That's why we always encourage that people post their attempts :)

    Sometimes, even if you don't see it, someone else might see it ;)
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