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If the lengths of perpendicular sides of a park that
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08 Jun 2019, 05:55
08 Jun 2019, 05:55
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Question Stats:
50% (02:39) correct
50% (00:04) wrong based on 2 sessions
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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
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
Re: If the lengths of perpendicular sides of a park that
[#permalink]
08 Jun 2019, 09:27
08 Jun 2019, 09:27
Expert Reply
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
A is the answer
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
A is the answer
gmatclubot
Re: If the lengths of perpendicular sides of a park that [#permalink]
08 Jun 2019, 09:27
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