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Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is

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Math Expert V
Joined: 02 Sep 2009
Posts: 55802
r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is  [#permalink]

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Difficulty:   25% (medium)

Question Stats: 73% (01:36) correct 27% (01:26) wrong based on 50 sessions

HideShow timer Statistics r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is the greatest possible value of n ?

A. 4
B. 5
C. 6
D. 7
E. 8

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CEO   P
Joined: 18 Aug 2017
Posts: 3936
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is  [#permalink]

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Bunuel wrote:
r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is the greatest possible value of n ?

A. 4
B. 5
C. 6
D. 7
E. 8

r has to be mini so r =4 and n can be at max be 7 so that ((r-3)(n-3)<5 IMO D
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Joined: 31 Oct 2013
Posts: 1376
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is  [#permalink]

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Bunuel wrote:
r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is the greatest possible value of n ?

A. 4
B. 5
C. 6
D. 7
E. 8

Given

r≥4
n≥4

(r-3)(n-3)<5

i must prefer back solving here.

minimum value of r must be 4. Therefore , n must be 7. The product has to be lower than 5.

(r-3)(n-3)<5

(4-3) (7-3) <5.

Thus , n is maximum 7. Re: r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is   [#permalink] 29 Nov 2018, 06:08
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r and n are integers such that r≥4 and n≥4. If (r-3)(n-3)<5, what is  