Ratio and Proportion MCQs with Answers

The ratio of $a$ to $b$ is $8 : 9$ and $b$ to $c$ is $4 : 6$. Find the continued ratio $a : b : c$.

• A.$24 : 27 : 36$
• B.$16 : 18 : 27$
• C.$8 : 9 : 13.5$
• D.$32 : 36 : 54$

A baker baked 360 cupcakes in a day. If he increased the quantity of baking cupcakes in the ratio $7:6$, what is the new quantity of cupcakes he would be baking daily?

• A.$390$
• B.$400$
• C.$420$
• D.$480$

If 8 bags of chips cost $10.32, how much will you pay for 20 bags?

• A.$25.20
• B.$24.60
• C.$26.40
• D.$25.80

Which of the following is equivalent to the ratio $7 : 12$?

• A.$14 : 24$
• B.$21 : 36$
• C.$35 : 60$
• D.All of these

What is the fourth proportional of $3$, $7$, and $15$?

• A.$35$
• B.$21$
• C.$45$
• D.$28$

Solve for $x$ in the proportion $15 : x = 9 : 18$.

• A.$30$
• B.$25$
• C.$27$
• D.$20$

The difference between two whole numbers is 60. If the ratio between them is $2 : 3$, find the numbers.

• A.$120$ and $180$
• B.$100$ and $160$
• C.$130$ and $190$
• D.$110$ and $170$

Find $x$ when $x : 72 :: 7 : 18$.

• A.$36$
• B.$32$
• C.$24$
• D.$28$

A company gives Rs. 25,000 bonus to each of its employees annually. If the company increases their bonus in the ratio $5:4$, what is the new bonus that each person gets?

• A.Rs. 30,000
• B.Rs. 20,000
• C.Rs. 31,250
• D.Rs. 32,500