Ratio and Proportion MCQs

Ratio and Proportion MCQs

The following Ratio and Proportion MCQs have been compiled by our experts through research, in order to test your knowledge of the subject of Ratio and Proportion. We encourage you to answer these multiple-choice questions to assess your proficiency.
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1: If a : b = 5 : 9 and b : c = 4: 7, find a : b : c.

A.   30/7

B.   31/7

C.   32/7

D.   34/7

2: Divide Rs. 672 in the ratio 5 : 3.

A.   252,420

B.   254.487

C.   273,456

D.   287,420

3: Divide Rs. 1162 among A, B, C in the ratio 35 : 28 : 20.

A.   A=500.b=390,c=240

B.   A=490.b=392,c=280

C.   A=498.b=396,c=287

D.   A=491.b=372,c=286

4: A bag contains 50 p, 25 P and 10 p coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of each type.

A.   50p coins=200,25p coins=360,10p coins=160

B.   50p coins=200,25p coins=400,10p coins=120

C.   50p coins=240,25p coins=360,10p coins=120

D.   50p coins=205,25p coins=365,10p coins=150

5: A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture

A.   11 ltr

B.   12ltr

C.   10ltr

D.   15ltr

6: What is a ratio?

A.   A mathematical equation with two variables

B.   A comparison of two or more quantities using division

C.   A value that represents a fraction

D.   A representation of a single quantity

7: If a car travels 240 miles in 4 hours, what is its speed in miles per hour?

A.   60 miles per hour

B.   40 miles per hour

C.   80 miles per hour

D.   120 miles per hour

8: If 4 men can paint a house in 8 days, how many men are needed to paint the same house in 2 days?

A.   16 men

B.   8 men

C.   2 men

D.   32 men

9: The scale of a map is 1:25000. If the distance between two towns on the map is 5 cm, what is the actual distance in kilometers?

A.   0.02 kilometers

B.   0.2 kilometers

C.   20 kilometers

D.   2 kilometers

10: If the ratio of boys to girls in a class is 3:5, and there are 24 girls, how many boys are there?

A.   8 boys

B.   15 boys

C.   40 boys

D.   72 boys

11: If a rectangle has sides in the ratio of 3:5, and the length is 15 meters, what is the width of the rectangle?

A.   5 meters

B.   9 meters

C.   8 meters

D.   7 meters

12: If the ratio of the ages of John and Mary is 4:5, and Mary is 25 years old, how old is John?

A.   16 years old

B.   20 years old

C.   24 years old

D.   30 years old