DS 48 from OG quantative

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maria: Senior | Next Rank: 100 Posts; Posts: 39; Joined: Tue May 06, 2008 11:49 am; Thanked: 1 times

by maria » Tue May 27, 2008 10:39 am

how many integers n are there such that r<n<s?
1, s - r = 5
2. r and s are not integers.

thanks

Source: Beat The GMAT — GMAT Strategy | Tue May 27, 2008 10:39 am

wawatan: Master | Next Rank: 500 Posts; Posts: 171; Joined: Sat May 03, 2008 3:51 pm; Thanked: 8 times

by wawatan » Tue May 27, 2008 3:32 pm

this is in the wrong forum. please post this under math section for data sufficiency.

netigen: Legendary Member; Posts: 631; Joined: Mon Feb 18, 2008 11:57 pm; Thanked: 29 times; Followed by:3 members

by netigen » Tue May 27, 2008 8:05 pm

If r and s are integers then the ans = 4
if r and s are not integers then ans = 5

hence it should be C

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