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Which of the following is not in proportion?

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Important Questions on Ratio and Proportion

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Maths Hub (ICSE)>Chapter 8 - Ratio and Proportion>Multiple Choice Questions>Q 5
Which of the following arrangements of the numbers 15, 288, 32, 135 forms a proportion?
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Maths Hub (ICSE)>Chapter 8 - Ratio and Proportion>Multiple Choice Questions>Q 6
The first, third, and fourth terms of a proportion are 6, 9 and 36, respectively. The second term is
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Maths Hub (ICSE)>Chapter 8 - Ratio and Proportion>Multiple Choice Questions>Q 7
The fourth proportional to 6, 10 and 12 is 
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Maths Hub (ICSE)>Chapter 8 - Ratio and Proportion>Multiple Choice Questions>Q 8
The third proportional to 9 and 27 is
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Maths Hub (ICSE)>Chapter 8 - Ratio and Proportion>Multiple Choice Questions>Q 9
The mean proportional between 7 and 28 is
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Maths Hub (ICSE)>Chapter 8 - Ratio and Proportion>Multiple Choice Questions>Q 10
To get more, in solving a direct variation problems by unitary method, we
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Maths Hub (ICSE)>Chapter 8 - Ratio and Proportion>Mental Maths>Q 1
The ratio of marks scored by you in Mathematics to English is 3:2. If the marks scored in English are 50, then marks scored in Mathematics are _____.
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Maths Hub (ICSE)>Chapter 8 - Ratio and Proportion>Mental Maths>Q 2
The angles of a triangle are in the ratio 1:2:3. Find the measure of each angle.