Problems on Ratios

    

 Rainbow 🌈 Mental Exercise, daily activity 

Ratios represent the relative sizes or quantities of two or more values, expressed as a fraction or with a colon, indicating how many times one value contains or is contained within the other.

1.The ratio of boys to girls in a classroom is 3:2. If there are 18 boys, how many girls are there?

 A) 24
 B) 18
 C) 12
 D) 10

ANSWER= (C) 12

 

2. The ratio of the length to the width of a rectangle is 5:3. If the width is 12 cm, what is the length?

 A) 25
 B) 18
 C)  5
 D) 20

ANSWER= (D) 20

 

3.  If the ratio of apples to oranges in a basket is 7:5 and there are 35 apples, how many oranges are there?

 A) 10
 B) 20
 C) 13
 D) 25

ANSWER= (D)  25

 

4.  The ratio of the ages of two siblings is 3:4. If the older sibling is 12 years old, how old is the younger sibling?

 A) 9
 B) 18
 C) 15
 D) 3

ANSWER= (A) 9

 

5. A bag contains red and blue marbles in the ratio of 2:3. If there are 30 blue marbles, how many red marbles are there?

 A) 40
 B) 30
 C) 10
 D) 20

ANSWER= (D) 20

 

6. The ratio of sugar to milk in a recipe is 1:4. If you have 8 cups of milk, how many cups of sugar do you need?

 A) 16
 B) 8
 C) 4
 D) 2

ANSWER= (D) 2

 

7. In a mixture of 45 litre of juice, the ratio of mango juice to orange juice is 4:5. How many litre of mango juice are there?

 A) 30
 B) 10
 C) 25
 D) 20

ANSWER= (D) 20