If 100<x<199 and 10<y<100, then the product xy CANNOT be equal to:

This topic has expert replies
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3008
Joined: Mon Aug 22, 2016 6:19 am
Location: Grand Central / New York
Thanked: 470 times
Followed by:34 members
BTGmoderatorDC wrote:
Sun Jul 26, 2020 7:05 pm
If 100<x<199 and 10<y<100, then the product xy CANNOT be equal to:

A. 19,104
B. 19,303
C. 19,356.732
D. 19,502
E. 19,909

OA E

Source: Veritas Prep
Given that 100<x<199 and 10<y<100, we will have 1,000 < xy < 19,900. The maximum value of xy would be less than 19,900; thus, option E is incorrect.

Correct answer: E

Hope this helps!

-Jay
_________________
Manhattan Review GMAT Prep

Locations: GMAT Prep Atlanta | SAT Prep San Francisco | GMAT Prep USA | TOEFL Prep Minneapolis | and many more...

Schedule your free consultation with an experienced GMAT Prep Advisor! Click here.

Legendary Member
Posts: 2499
Joined: Sun Oct 29, 2017 2:04 pm
Followed by:6 members
BTGmoderatorDC wrote:
Sun Jul 26, 2020 7:05 pm
If 100<x<199 and 10<y<100, then the product xy CANNOT be equal to:

A. 19,104
B. 19,303
C. 19,356.732
D. 19,502
E. 19,909



OA E

Source: Veritas Prep

\(100 < x < 199\) and \(10 < y < 100\)

Since ALL \(+\)ve & same sign , directly multiply,

\(1000 < xy < 19900\)

The only product which does NOT lie between \(1000\) and \(19900\) is E (\(19,909\))