possible integer value

This topic has expert replies
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 am
Location: India
Thanked: 267 times
Followed by:80 members
GMAT Score:760

possible integer value

by sanju09 » Fri May 14, 2010 12:59 am
If 2 < a < 4 and 3 < b < 7, then what is the greatest possible integer value of a + b?
(A) 7
(B) 8
(C) 9
(D) 10
(E) 11
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Source: — Problem Solving |

Senior | Next Rank: 100 Posts
Posts: 85
Joined: Sat Aug 15, 2009 4:36 am
Thanked: 19 times

by gmatjedi » Sat May 15, 2010 4:01 am
10

a and b are not explicitly said to be integers; therefore, a=3.5 and b=6.5 or a=3.1 and b=6.9.

Legendary Member
Posts: 759
Joined: Mon Apr 26, 2010 10:15 am
Thanked: 85 times
Followed by:3 members

by clock60 » Sat May 15, 2010 4:43 am
sanju09 wrote:If 2 < a < 4 and 3 < b < 7, then what is the greatest possible integer value of a + b?
(A) 7
(B) 8
(C) 9
(D) 10
(E) 11
agree with 10
2<a<4
3<b<7

let us add two inequalities
5<a+b<11
as a+b must be integer the greatest integer value for a+b=10

User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 am
Location: India
Thanked: 267 times
Followed by:80 members
GMAT Score:760

by sanju09 » Sat May 15, 2010 4:47 am
clock60 wrote:
sanju09 wrote:If 2 < a < 4 and 3 < b < 7, then what is the greatest possible integer value of a + b?
(A) 7
(B) 8
(C) 9
(D) 10
(E) 11
agree with 10
2<a<4
3<b<7

let us add two inequalities
5<a+b<11
as a+b must be integer the greatest integer value for a+b=10
that's better
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com