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14 Nov 2017, 01:12
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B
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Difficulty:
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82% (01:11) correct
18%
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If the circumference of circle R is 2π inches longer than the circumference of circle Q, the radius of R is how many inches longer than the radius of Q?
(A) 1/2π
(B) 1
(C) 4/π
(D) 2
(E) 2π
(A) 1/2π
(B) 1
(C) 4/π
(D) 2
(E) 2π
14 Nov 2017, 02:18
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Bunuel
If the circumference of circle R is 2π inches longer than the circumference of circle Q, the radius of R is how many inches longer than the radius of Q?
(A) 1/2π
(B) 1
(C) 4/π
(D) 2
(E) 2π
(A) 1/2π
(B) 1
(C) 4/π
(D) 2
(E) 2π
Ler Radius of the Q = r
i.e. Circumference of Q = 2πr
i.e. Circumference of R = 2πr+2π = 2π(r+1)
i.e. Radius of R is 1 inch greater than radius of Q
Answer: Option B
14 Nov 2017, 04:14
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B.1
Let the radius of circle R=r and Q=q
As per question
2.pi.r= 2.pi.q+2.pi
Solving
r=q+1
Hence B.1
Sent from my iPhone using GMAT Club Forum
Let the radius of circle R=r and Q=q
As per question
2.pi.r= 2.pi.q+2.pi
Solving
r=q+1
Hence B.1
Sent from my iPhone using GMAT Club Forum
