Rumeysalbaharrans
Answered

a/b=2/3 ve b/c=2/5 olmak üzere a+b+c=25 olduğuna göre a kactir?
A)2 B)4 C)5 D)6 E)9
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Sagot :

Yagmursude752rans

Cevap:

B şıkkı

Adım adım açıklama:

[tex] \frac{a}{b} = \frac{2}{3} [/tex]

[tex] \frac{b}{c} = \frac{2}{5} [/tex]

b hem 2nin hem 3un katları imiş

6,12,18... olabilir

Biz 6 yi deneyelim

[tex] \frac{a}{b} = \frac{4}{6} [/tex]

[tex] \frac{b}{c} = \frac{6}{15} [/tex]

a+b+c=25

4+6+15=25

Yani

a => 4

b => 6

c => 15

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