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Quiz de Razones

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Quiz de Razones

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Ejercicios de razones

Created by

Betina Amaya
Betina Amaya
Colombia

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Quiz de Razones
 

Quiz de RazonesOnline version

Ejercicios de razones

by Betina Amaya
1

Si la razón entre A y B es 3:2 y A=9, ¿cuánto vale B?

2

La razón de perros a gatos es 5:3. Si hay 40 perros, ¿cuántos gatos hay?

3

Si la razón de estudiantes a profesores es 8:1 y hay 72 estudiantes, ¿cuántos profesores hay?

4

Una mezcla con razón 2:5 de agua a jugo. Si se usan 14 litros de agua, ¿cuántos litros de jugo?

5

Si la razón de horas de estudio a descanso es 4:1 y se estudian 8 horas, ¿cuánto se descansa?

6

La razón de libros a revistas es 3:2. Si hay 15 libros, ¿cuántas revistas hay?

7

En una sala, la razón entre asientos y mesas es 7:4. Si hay 77 asientos, ¿cuántas mesas?

8

La velocidad de un coche a pie de carretera es 6:1. Si el coche recorre 60 km, ¿cuántos km recorre a pie?

9

En una población, la razón de jóvenes a adultos es 3:5. Si hay 24 jóvenes, ¿cuántos adultos hay?

10

Una receta lleva azúcar:mantequilla en 4:3. Si se usan 12 g de azúcar, ¿cuántos g de mantequilla?

Explicación

La razón 3:2 implica A/B=3/2. Con A=9, B=9*(2/3)=6.

Gatos = 40*(3/5)=24.

Profesores = 72*(1/8)=9.

Total proporción 2:5; jugo = 14*(5/2)=35.

Descanso = 8*(1/4)=2.

Revistas = 15*(2/3)=10.

Mesas = 77*(4/7)=44.

A pie = 60*(1/6)=10.

Adultos = 24*(5/3)=40.

Mantequilla = 12*(3/4)=9.

 
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