Practise Ratio and Proportion MCQs MCQs in Maths. Attempt multiple-choice questions, check answers and revise related subtopics.
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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Answer: 20
Explanation Boys:Girls = 3:2 Boys = 30 => 3x = 30 => x = 10 Girls = 2x = 2(10) = 20 Last verified on 15-02-2026
Answer: 60 : 1
Explanation 1 hour = 60 minutes, so the ratio of an hour to a minute is 60 : 1 . It compares the larger unit (hour) to the smaller unit (minute).
Answer: 6 : 35
Explanation Given: a : b : c = 2 : 5 (let's assume a common multiple for b and c to match both ratios) b : c = 3 : 7 To match both ratios, let's find the LCM for b in both ratios. Given a : b = 2 : 5 and b : c = 3 : 7, let's make the ratios comparable by finding a common multiple for b. For a : b = 2 : 5 and b : c = 3 : 7, let's scale a : b : c = 2_3 : 5_3 : 5*7 = 6 : 15 : 35 Now b : c = 15 : 35 which simplifies to 3 : 7. Given a : b : c = 6 : 15 : 35 a : c = 6 : 35
Answer: 6 : 4 : 3
Explanation 2A = 3B = 4C Let k = 2A = 3B = 4C Now solve for A, B, and C: - A = k / 2 - B = k / 3 - C = k / 4 Now take the ratio A : B : C: = (k/2) : (k/3) : (k/4) Multiply all terms by 12 to eliminate denominators: = 6 : 4 : 3
Answer: 108
Explanation Let's break down the problem step by step: Step 1: Express the initial number of boys and girls using the given ratio Let the number of boys be 11x and the number of girls be 13x. Step 2: Calculate the new number of boys and girls after 4 boys and 8 girls join the class New number of boys = 11x + 4 New number of girls = 13x + 8 Step 3: Set up the equation based on the new ratio Given the new ratio is 4:5, we can write the equation as: (11x + 4) / (13x + 8) = 4/5 Step 4: Solve the equation Cross-multiplying gives us: 5(11x + 4) = 4(13x + 8) 55x + 20 = 52x + 32 55x - 52x = 32 - 20 3x = 12 x = 4 Step 5: Calculate the strength of the class Strength of the class = Initial number of boys + Initial number of girls + New boys + New girls = 11x + 13x + 4 + 8 = 24x + 12 = 24*4 + 12 = 96 + 12 = 108
Answer: 20
Explanation For the second question, let the two numbers be 3x and 2x . The sum is given as 50, so: 3x + 2x = 50 quad Rightarrow quad 5x = 50 quad Rightarrow quad x = 10 3 x + 2 x = 50 ⇒ 5 x = 50 ⇒ x = 10 Thus, the smaller number is: 2 x = 2 × 10 = 20
Answer: 2.2
Explanation Using cross multiplication: 1 times 11 = 5 times x 1 × 11 = 5 × x . This gives 11 = 5x 11 = 5 x . Solving for x, , x = 11 5 = 2.2
ے بی سی لمیٹڈ کا موجودہ تناسب 1.5:1 ہے اور خالص کرنٹ اثاثے روپے ہیں۔ 5,00,000 موجودہ اثاثے کیا ہیں؟
Answer: Rs. 15,000
Explanation current asset / current liabilities =1.5/1 current assets = 1.5 L because working capital equal current asset - current liabilities 1.5 L - L = 5000 ,5 L = 5000 L= 5000/.5 L= 10000 because the percentage of current ratio is 1.5 this mean that current assets cover current liabilities by50% over thus current asset = 10000*1.5 =15000
Answer: 7:1
Explanation To find the ratio of passed to failed students: Number of students who passed = Total students - Failed students = 112 - 14 = 98 Ratio of passed to failed students = 98 : 14 Simplify the ratio by dividing both numbers by 14: Ratio = 98/14 : 14/14 = 7 : 1
Answer: 260g
Explanation Milk:Water = 5:2 Milk = 650g = 5 parts 1 part = 650/5 = 130g Water = 2 parts = 2×130 = 260g Last verified on 08-02-2026
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