Ehveniser
10th July 2006, 11:25
4) If the diameter of a circle increases by 50%, by what percent will the area of the circle increase?
(A) 25%
(B) 50%
(C) 100%
(D) 125%
(E) 225%
(A) 25%
(B) 50%
(C) 100%
(D) 125%
(E) 225%
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Tam Sürüm Bilgini Göster : gmat math problems 4 Ehveniser 10th July 2006, 11:25 4) If the diameter of a circle increases by 50%, by what percent will the area of the circle increase? (A) 25% (B) 50% (C) 100% (D) 125% (E) 225% Gymnopédies 14th July 2006, 00:49 I would pick "(B) 50%" SibelAKBULUT 14th July 2006, 00:53 E demek geldi içimden. geminii 14th July 2006, 00:56 Benim de B diyesim geldi :p İremCanli 14th July 2006, 02:47 4) If the diameter of a circle increases by 50%, by what percent will the area of the circle increase? (A) 25% (B) 50% (C) 100% (D) 125% (E) 225% açıklama isteyene açıklama yapılır.......:D :D :D İremCanli 14th July 2006, 03:13 cevap doğruysa tabii.:D Ehveniser 14th July 2006, 09:54 açıklaması da benden olsun Hocam :) r1=r r2=3/2 r A1=pi. rkare A2=pi. 9/4. rkare artış= 5/4 A1 = %125 İremCanli 14th July 2006, 14:54 açıklaması da benden olsun Hocam :) r1=r r2=3/2 r A1=pi. rkare A2=pi. 9/4. rkare artış= 5/4 A1 = %125 değer vererek daha mı kolay oluyo ne?......;) Ehveniser 14th July 2006, 14:56 tabi ki :) Gymnopédies 14th July 2006, 15:23 Aramızda ne matematikçiler varmış yaaa :D kayamusty 14th July 2006, 17:15 diameter: çap = 2x olsun yarı cap x olur capı %50 artırırsak 3x olur yarı cap 3x/2 olur A1: pi . X^2= a olsun A2: pi. 3x/2^2=2.25 a olur yani 1.25a artmışlur 1.25a a nın %125 dir Universe 17th July 2006, 17:51 :eek: :confused: :confused: :) |