Ratio and Proportion MCQs with Answers

The ratio from 5 feet to 3 inches is ?

• A.$20 : 1$
• B.$5 : 3$
• C.$1 : 20$
• D.$60 : 1$

What is the ratio of $3\frac{1}{2}$ kg to 50 g?

• A.$60:1$
• B.$70:1$
• C.$75:1$
• D.$80:1$

The ratio of two numbers $a$ and $b$ is $3:5$. If $2$ is added to both numbers, the ratio becomes $2:3$. Find $b$.

• A.$8$
• B.$10$
• C.$12$
• D.$15$

Past Paper MCQ

The ratio of ages of two students is $3 : 2$. One is older than the other by 5 years. What is the age of the younger student?

• A.$8$ years
• B.$10$ years
• C.$12$ years
• D.$15$ years

If 7 men in 100 are criminals, how many men in 500 are criminals?

• A.$28$
• B.$35$
• C.$42$
• D.$49$

The ratio between the sides of a triangle are $x : y = 3 : 4$ and $y : z = 6 : 7$. Find the ratio $x : y : z$.

• A.$9 : 12 : 14$
• B.$3 : 4 : 7$
• C.$6 : 8 : 7$
• D.$18 : 24 : 28$

The number of boys in a class is three times the number of girls. Which one of the following numbers cannot represent the total number of children in the class?

• A.$40$
• B.$42$
• C.$44$
• D.$48$

The folder prices at different stores are: Store A: 7 for Rs. 42, Store B: 6 for Rs. 50, Store C: 8 for Rs. 56, Store D: 9 for Rs. 72. Which store has an exact rate of Rs. 8 per folder?

• A.Store A
• B.Store B
• C.Store C
• D.Store D

Rs. 338 is divided between A and B, so that A gets $\frac{5}{8}$ of what B gets. What amount does B get?

• A.Rs. 130
• B.Rs. 208
• C.Rs. 160
• D.Rs. 180

The value of $a$ in $40 : 60 = 50 : a$ is _?

• A.$70$
• B.$80$
• C.$75$
• D.$65$