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Caroline, Krutika and Natasha share some sweets in the ratio 4:3:3. Caroline gets 9 more sweets than Natasha. How many sweets does Krutika get?

Respuesta :

Answer:

Krutika gets 27 sweets

Step-by-step explanation:

Let

x ---> number of sweets that Caroline gets

y ---> number of sweets that Krutika gets

z ---> number of sweets that Natasha gets

we know that

[tex]x:y:z=4:3:3[/tex]

so

[tex]\frac{x}{y}=\frac{4}{3}[/tex]

[tex]x=\frac{4}{3}y[/tex] ----> equation A

[tex]\frac{x}{z}=\frac{4}{3}[/tex]

[tex]x=\frac{4}{3}z[/tex] ----> equation B

[tex]y=z[/tex] ---> equation C

Caroline gets 9 more sweets than Natasha

so

[tex]x=z+9[/tex] ---> equation D

substitute equation D in equation B

[tex]z+9=\frac{4}{3}z[/tex]

solve for z

[tex]\frac{4}{3}z-z=9[/tex]

[tex]\frac{1}{3}z=9\\z=27\ sweets[/tex]

therefore

Krutika gets 27 sweets