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Sequences and series...

Asked Jul 22, 2012, 09:49 PM — 5 Answers
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....?

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Unknown008's Avatar
Unknown008 Posts: 8,147, Reputation: 3745
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#2

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

Jul 23, 2012, 06:17 AM
yes but its useless to show it.....can u please solve?
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Unknown008's Avatar
Unknown008 Posts: 8,147, Reputation: 3745
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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.
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lionel messi's Avatar
lionel messi Posts: 35, Reputation: 1
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#5

Jul 23, 2012, 09:38 PM
actually ive done it now
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 wasnt USELESS ;P
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Unknown008's Avatar
Unknown008 Posts: 8,147, Reputation: 3745
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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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