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# In the finite sequence of positive integers K1, K2, K3, . . . , K9, ea

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Retired Moderator
Joined: 04 Aug 2016
Posts: 487
Location: India
GPA: 4
WE: Engineering (Telecommunications)
In the finite sequence of positive integers K1, K2, K3, . . . , K9, ea  [#permalink]

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09 Apr 2017, 08:23
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5% (low)

Question Stats:

84% (01:26) correct 16% (01:49) wrong based on 188 sessions

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In the finite sequence of positive integers K1, K2, K3, . . . , K9, each term after the second is the sum of the two terms immediately preceding it. If K5 = 18, what is the value of K9 ?
(1) K4 = 11
(2) K6 = 29
Senior Manager
Joined: 24 Apr 2016
Posts: 331
Re: In the finite sequence of positive integers K1, K2, K3, . . . , K9, ea  [#permalink]

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17 Apr 2017, 13:49
1
K1 K2 K3 K4 K5 K6 K7 K8 K9

K5 = K4 + K3 = 18
K9 = K7 + K8 = ?

Statement 1: K4 = 11
Using K4 and K5 we can find K6, then K7 and so on.

This statement is sufficient.

Statement 2: K6 = 29
Using K5 and K6 we can find K7, then K8 and so on.

This statement is sufficient.

Senior Manager
Joined: 15 Jan 2017
Posts: 353
Re: In the finite sequence of positive integers K1, K2, K3, . . . , K9, ea  [#permalink]

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10 Oct 2017, 11:03
Ans D.
k 5 = 18 --> k4 + k3 = k5

1) K 4 = 11
K4 +K3 = K5--> k3 = 18 -11
SUFF

2) K 6 = 29
K 6 = K5 + K 4
29 = 18 + K 4
K 4 = 11

SUFF

Ans D.
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Joined: 09 Sep 2013
Posts: 9871
Re: In the finite sequence of positive integers K1, K2, K3, . . . , K9, ea  [#permalink]

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02 Nov 2018, 06:29
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Re: In the finite sequence of positive integers K1, K2, K3, . . . , K9, ea   [#permalink] 02 Nov 2018, 06:29
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