Ratio and Proportion MCQs MCQs - Maths Practice | PakExamPoint

Practise Ratio and Proportion MCQs MCQs in Maths. Attempt multiple-choice questions, check answers and revise related subtopics.

Ratio and Proportion MCQs MCQs and revision practice

Study Ratio and Proportion MCQs through multiple-choice questions in Maths. This subtopic contains 287 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

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Ratio and Proportion MCQs: questions and answer review

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121. Noor, Ayat and Kaunain opened a milk shop in the partnership. Share of profits is in the ratio of 1:2:3. If the profit is Rs.600, what is the Noor’s share?

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Answer: Rs.100

Explanation Step 1: Determine the total parts in the ratio The ratio is 1:2:3, so the total parts are 1 + 2 + 3 = 6 Step 2: Calculate Noor's share Noor's share is 1 out of 6 parts, so his share of the profit is (1/6) * 600 Step 3: Calculate the amount (1/6) * 600 = 100

122. 7 out of 10 women prefer Brand A shampoo and the other 3 prefer Brand B shampoo. What should be written as a ratio of Brand A to Brand B?

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Answer: 7:3

Explanation Brand A is preferred by 7 women and Brand B by 3 women . So, ratio of A to B is 7:3 . Last verified on 16-03-2026

123. In the proportion a:b::c:d, the terma:d is called?

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Answer: Extreme Proportion

Explanation In a proportion of the form a : b :: c : d, the terms a and d are called the extremes, while b and c are called the means. So, the ratio a : d (the first and the last terms) is called the Extreme Proportion.

124. The water and milk are in the ratio 1 : 3. How much water should be added to 12 liters of the mixture to make the ratio 2 : 3?

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Answer: 3 liters

Explanation In 12 L mixture with ratio 1:3: Total parts = 1 + 3 = 4 Water = (1/4) × 12 = 3 L Milk = (3/4) × 12 = 9 L Let x liters of water be added. Milk stays 9 L. New ratio: (3 + x) : 9 = 2 : 3 So (3 + x)/9 = 2/3 3(3 + x) = 18 9 + 3x = 18 3x = 9 x = 3 Last verified on 13-05-2026

125. If roots of ax² + bx + c = 0 are reciprocals of roots of 2x² - 3x + 1 = 0 then a : b : c?

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Answer: 1:-3:2

Explanation For 2x² - 3x + 1 = 0: Sum = 3/2, Product = 1/2 Let roots be α, β. Then new roots are 1/α, 1/β New sum = 1/α + 1/β = (α + β)/αβ = (3/2) / (1/2) = 3 New product = 1/αβ = 1/(1/2) = 2 New equation: x² - (sum)x + product = x² - 3x + 2 = 0 So a:b:c = 1:-3:2 Last verified on 06-05-2026

126. If A and B are in the ratio 3 : 5 and B increases by 20%, find the new ratio?

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Answer: 3 : 6

Explanation Let A = 3x, B = 5x Increase B by 20% → new B = 5x × 1.2 = 6x New ratio = A : B = 3x : 6x = 3 : 6 = 1 : 2 Last verified on 12-05-2026

127. If the ratio of the boys and girls is 3:2 and total student are 25, how many boys are there?

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Answer: 15

Explanation Step 1: Understand the ratio Boys : Girls = 3 : 2 Total parts = 3 + 2 = 5 Step 2: Find value of one part frac{25}{5} = 5 25/5 ​ = 5 Step 3: Find number of boys 3 × 5 = 15

128. If 8 men eat 16 mangoes in 15 minutes, then how many mangoes will 16 men eat in 30 minutes?

اگر 8 آدمی 15 منٹ میں 16 آم کھائیں تو 16 آدمی 30 منٹ میں کتنے آم کھائیں گے؟

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Answer: 64

Explanation If 8 men eat 16 mangoes in 15 minutes, it means each man eats 16/8 = 2 mangoes in 15 minutes. So, in 30 minutes, each man will eat 2×2 = 4 mangoes. Therefore, if there are 16 men eating for 30 minutes , they will eat 16×4 = 64 mangoes.

129. If a : b : c = 3 : 4 : 7, then the ratio (a + b + c) is equal to ______?

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Answer: 14 : 3

Explanation Given a : b : c = 3 : 4 : 7. Let's find (a + b + c) : c or any other single term. Here we find (a + b + c) : a a + b + c = 3 + 4 + 7 = 14 (a + b + c) : a = 14 : 3

130. The ratio of the mass of sand to cement in a particular type of concrete is 4.8 : 2. If 6 kg of sand are used, how much cement is needed?

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Answer: 2.5 kg

Explanation Given ratio: Sand : Cement = 4.8 : 2 Let's find the factor by which 4.8 is multiplied to get 6 kg of sand: 6 kg / 4.8 = 1.25 Now, multiply the cement ratio by this factor: Cement needed = 2 × 1.25 = 2.5 kg

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