Question

Si 32/b = b/c = c/4 = 4/r. Hallar r + c

Answer 1

32/B = B/ C = C/ 4 = 4/R

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 4B =32R
B=8R ⇒R = B/8
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CR = 16
C(B/8) = 16
CB= 128
C= 128/B
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BR=4C
BR= 4(128/B)
B(B/8) = 4(128/B)
B³ = 4096  ⇒ B = 16 ENCONTRAMOS B
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AHORA SOLO REEMPLAZAMOS .... 
R = B/8 = 16 / 8 = 2  .... R = 2 ENCONTRAMOS R
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C= 128/ B ⇒ C = 8 .... ENCONTRAMOS C
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 PIDE R + C = 2 + 8 = 10