It is currently 19 Sep 2019, 06:39

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# If the lengths of perpendicular sides of a park that

Author Message
TAGS:
Intern
Joined: 20 May 2019
Posts: 31
Followers: 0

Kudos [?]: 2 [0], given: 0

If the lengths of perpendicular sides of a park that [#permalink]  08 Jun 2019, 05:55
00:00

Question Stats:

0% (00:00) correct 100% (00:04) wrong based on 1 sessions
If the lengths of perpendicular sides of a park that is in the shape of a right-angled triangle park are integers and the area of the triangular park is 630 square units, which of the following can be the greatest number that divides the lengths of both the perpendicular sides?

I. 6
II. 10
III. 21

A. I only
B. II only
C. III only
D. I and II only
E. I, II and III
[Reveal] Spoiler: OA
Founder
Joined: 18 Apr 2015
Posts: 8128
Followers: 157

Kudos [?]: 1709 [0], given: 7477

Re: If the lengths of perpendicular sides of a park that [#permalink]  08 Jun 2019, 09:27
Expert's post
Area $$(\frac{1}{2})a*b = 630$$;

a*b= Integer = 1260

6x * 6y = 1260

xy = 35 = 7*5 possible.

For 10,

xy= 12.6 Not possible

For 21

xy= 20/7 Not Possible

_________________
Re: If the lengths of perpendicular sides of a park that   [#permalink] 08 Jun 2019, 09:27
Display posts from previous: Sort by