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: 44
Explanation Let's denote the numbers as 8x and 3x. Given: 8x - 3x = 20 5x = 20 x = 4 Step 1: Find the numbers First number = 8x = 8 * 4 = 32 Second number = 3x = 3 * 4 = 12 Step 2: Find the sum Sum = 32 + 12 = 44 Last updated by NA on 24-April-2026
Answer: 15
Explanation Given: 2 : 5 = 6 : x We can write it as: 2/5 = 6/x Cross-multiplying: 2x = 6 × 5 2x = 30 x = 30/2 x = 15
Answer: 44
Explanation Ratio boys : girls = 9 : 11 Total students = 80 Total parts = 9 + 11 = 20 Each part = 80 ÷ 20 = 4 Girls = 11 parts: 11 × 4 = 44 Last updated question NS on 10 MAY 2026
Answer: kx
Explanation In direct proportion, y ∝ x ⇒ = kx . k is the constant of proportionality; as x increases, y increases.
Answer: Rs.125.00
Explanation Let's break it down step by step: 4 boys = 5 girls, so 1 boy = 1.25 girls (since 5/4 = 1.25) 2 women = 3 boys, so 1 woman = 1.5 boys (since 3/2 = 1.5) 1 woman = 1.5 boys = 1.5 x 1.25 girls = 1.875 girls (since 1 boy = 1.25 girls) 6 men = 7 women, so 1 man = 1.167 women (since 7/6 = 1.167) Since 1 woman = 1.875 girls, 1 man = 1.167 x 1.875 girls = 2.188 girls If a girl earns Rs. 400 per week, a man earns Rs. 2.188 x 400 = Rs. 875.20 per week Daily earnings of a man = Rs. 875.20 / 7 = Rs. 125.00 So, the correct answer is Rs. 125.00.
Answer: 5: 12
Explanation Given ratio: 35 : 84 Step 1: Find the GCD (Greatest Common Divisor) of 35 and 84 GCD of 35 and 84 is 7 Step 2: Divide both terms by 7 35 ÷ 7 = 5 84 ÷ 7 = 12 Simplest form: 5 : 12
Answer: 15:8
Explanation Ratios 8:15 and 8 to 15 represent the same value ( 8 ÷ 15 ). 15:8 is the reverse ( 15 ÷ 8 ), so it is different from the others . Last verified on 16-03-2026
Answer: Rs.1600
Explanation Let the amount be divided into 7x,4x,3x and 2x. 7x-2x = 500 5x=500 x = 100 Total amount = 7x+4x+3x+2x = 16x = Rs. 1600
Answer: 15
Explanation Mean proportion between 5 and 45 is √5×45 = √225 = 15 Last verified on 19-03-2026
Answer: 17
Explanation 9/162=x/306 X=9/162 × 306 X= 17 ND04-08-2023
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