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Updated on: 05 Jul 2019, 05:44
Originally posted by Bunuel on 21 Jun 2017, 00:55.
Last edited by Sajjad1994 on 05 Jul 2019, 05:44, edited 2 times in total.
Last edited by Sajjad1994 on 05 Jul 2019, 05:44, edited 2 times in total.
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Difficulty:
25%
(medium)
Question Stats:
67% (00:47) correct
33%
(00:56)
wrong
based on 99
sessions
History
Date
Time
Result
Not Attempted Yet
A circle is depicted in the rectangular coordinate system as shown. The value of x is
(A) 4
(B) 6
(C) 8
(D) 10
(E) 12
Attachment:
2017-06-21_1253.png [ 13.27 KiB | Viewed 5437 times ]
Source: Nova GMAT
Difficulty Level: 600
Difficulty Level: 600
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The radius to this circle is 4, as the circle passes through line x=4 and x=-4.
The origin of this circle must be (6,0) because the circle with radius 4 will definitely pass through (2,0)
On the other side of the x-axis, the circle passes through (10,0)
Hence the value of x is 10(Option D)
The origin of this circle must be (6,0) because the circle with radius 4 will definitely pass through (2,0)
On the other side of the x-axis, the circle passes through (10,0)
Hence the value of x is 10(Option D)
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Since the Diameter of the circle is 8
Distance between (2,0) & (x,0) should be 8 (Line cuts the circle into two equal parts)
(x-2) = 8
x=10
Hence D
Distance between (2,0) & (x,0) should be 8 (Line cuts the circle into two equal parts)
(x-2) = 8
x=10
Hence D
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Bunuel
From the figure, if we move along the y - axis, we find that the radius of the circle is 4
Now moving along the x - axis with radius = 4,
The centre is (2+4,0) = (6,0)
and the coordinate of the point where x - axis cuts circle on other side is (10,0)
So x = 10
Answer D
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Bunuel
Looking at the y-axis, we see that the diameter of the circle is 4 - (-4) = 8.
Looking at the x-axis, we see that the left edge of the circle’s diameter is at x = 2. The line must extend to the right 8 more units to yield a diameter of 8, and so the value of x will be 10 at the rightmost edge of the circle.
Answer: D
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imo D
radius of the circle=4 dia=8
so 2+8=10
the coordinate will be 10
radius of the circle=4 dia=8
so 2+8=10
the coordinate will be 10
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Radius is 4. Diameter is 4*2=8.
Thus x coordinate would be 2+8=10.
Option D.
Sent from my ONEPLUS A3003 using GMAT Club Forum mobile app
Thus x coordinate would be 2+8=10.
Option D.
Sent from my ONEPLUS A3003 using GMAT Club Forum mobile app
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Bunuel
The radius is of 4 units. (look at the y-axis to find this out)
We are at (2,0) so the center is (6,0). Move one radius furhter away from it then it will be (10,0)
Hence D.
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Solution
Approach and Working out
- • 2 and x are the ends of the diameter.
- o Diameter of the circle is 8 units as shown in the diagram.
- o Thus, x = 10
Correct Answer: Option D
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