Ratio And Propertion mcq: Aptitude
The ratio of boys to girls in a class is 3 : 5. If there are 36 students in total , how many girls are there?
a) 12
b) 15
c) 20
d) 24
Answer: d) 24
If 2 pencils cost $ 0.60, what is the cost of 5 pencils?
a) $0.75
b) $1.00
c) $1.25
d) $1.50
Answer: c) $1.25
The ratio of the lengths of two sides of a rectangle is 3 : 5. If the shorter side has a length of 6 cm , what is the length of the longer side?
a) 9 cm
b) 12 cm
c) 15 cm
d) 18 cm
Answer: b) 12 cm
If the ratio of the areas of two similar triangles is 4 : 9, what is the ratio of their corresponding side lengths?
a) 1:2
b) 2:3
c) 3:4
d) 4:9
Answer: b) 2:3
The ratio of sugar to flour in a recipe is 2: 5 . If you need 4 cups of sugar how many cups , of flour do you need ?
a) 6
b) 8
c) 10
d) 12
Answer: c) 10
A car travels 240 miles in 4 hours . What is its averag e speed in miles per hour?
a) 30
b) 40
c) 50
d) 60
Answer: b) 60
In a fruit basket, the ratio of apples to oranges is 5 : 3. If there are 20 oranges, how many apples are there?
a) 10
b) 15
c) 25
d) 30
Answer: c) 25
The ratio of the ages of John and Mary is 3 : 2. If John is 24 years old , how old is Mary?
a) 12
b) 16
c) 18
d) 32
Answer: b) 16
A recipe calls for a ratio of 2 cups of milk to 3 cups of flour. If you have 6 cups of milk , how many cups of flour do you need?
a) 3
b) 4
c) 6
d) 9
Answer: d) 9
The scale on a map is 1 :25000. If the distance between two cities on the map is 5 cm , what is the actual distance between the cities in kilometers?
a) 5
b) 10
c) 12.5
d) 50
Answer: d) 50
The ratio of the angles in a triangle is 1: 2:3, What is the measure of the smallest angle ?
a) 30 degrees
b) 45 degrees
c) 60 degrees
d) 90 degrees
Answer: a) 30 degrees
A bag contains 8 red balls and 5 blue balls. If a ball is randomly selected , what is the probability of drawing a red ball?
a) 5/13
b) 8/13
c) 8/11
d) 5/8
Answer: b) 8/13
The ratio of the prices of two books is 3:4. If the first book costs $ 24, what is the cost of the second book?
a) $12
b) $16
c) $32
d) $48
Answer: c) $32
The ratio of the weights of two objects is 2 : 7. If the first object weighs 18 pounds, what is the weight of the second object?
a) 4 pounds
b) 9 pounds
c) 49 pounds
d) 63 pounds
Answer: d) 63 pounds
The ratio of boys to girls in a class is 2:5. If there are 28 students in total, how many boys are there?
a) 8
b) 10
c) 12
d) 16
Answer: b) 10
If 4 pens cost $1.20, what is the cost of 10 pens?
a) $0.30
b) $0.60
c) $1.00
d) $3.00
Answer: d) $3.00
The ratio of the lengths of two sides of a rectangle is 4 : 9. If the shorter side has a length , of 12 cm what is the length of the longer side ?
a) 18 cm
b) 24 cm
c) 27 cm
d) 36 cm
Answer: c) 27 cm
If the ratio of the areas of two similar triangles is 9 :16, what is the ratio of their corresponding side lengths?
a) 3:4
b) 4:3
c) 3:2
d) 2:3
Answer: a) 3:4
The ratio of sugar to flour in a recipe is 1: 4. If you need 3 cups of flour, how many cups of sugar do you need?
a) 1
b) 2
c) 3
d) 4
Answer: a) 1
A car travels 180 miles in 3 hours. What is its average speed in miles per hour?
a) 30
b) 40
c) 50
d) 60
Answer: c) 60
In a fruit basket, the ratio of apples to oranges is 3 :5. If there are 40 oranges, how many apples are there?
a) 12
b) 15
c) 24
d) 30
Answer: c) 24
The ratio of the ages of John and Mary is 2:5. If Mary is 35 years old, how old is John?
a) 10
b) 14
c) 20
d) 25
Answer: b) 14
A recipe calls for a ratio of 1 cup of milk to 4 cups of flour . If you have 2 cups of milk , how many cups of flour do you need?
a) 1
b) 2
c) 4
d) 8
Answer: c) 4
The scale on a map is 1: 50000. If the distance between two cities on the map is 8 cm, what is the actual distance between the cities in kilometers?
a) 4
b) 16
c) 40
d) 80
Answer: c) 40
The ratio of the angles in a triangle is 2:3:4. What is the measure of the smallest angle?
a) 30 degrees
b) 45 degrees
c) 60 degrees
d) 90 degrees
Answer: a) 30 degrees
A bag contains 6 red balls and 3 blue balls. If a ball is randomly selected, what is the probability of drawing a blue ball?
a) 1/3
b) 1/4
c) 1/2
d) 2/3
Answer: b) 1/4
The ratio of the prices of two books is 5:7. If the first book costs $35, what is the cost of the second book?
a) $25
b) $49
c) $50
d) $70
Answer: d) $70
The ratio of the weights of two objects is 3 : 8 . If the first object weighs 24 pounds , what is the weight of the second object?
a) 8 pounds
b) 18 pounds
c) 48 pounds
d) 64 pounds
Answer: d) 64 pounds
The ratio of boys to girls in a class is 5 :7. If there are 84 students in total , how many boys are there?
a) 20
b) 30
c) 40
d) 50
Answer: c) 40
If 5 calculators cost $100, what is the cost of 12 calculators?
a) $120
b) $240
c) $500
d) $1,200
Answer: b) $240