Mathematics: Ratio and Proportion, Indices, Logarithms
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Questions and Answers

What is the concept of ratio as per the given text?

  • Comparison of the sizes of two or more quantities by multiplication
  • Comparison of the sizes of two or more quantities by addition
  • Comparison of the sizes of two or more quantities by division (correct)
  • Comparison of the sizes of two or more quantities by subtraction

What is the term used for the fraction a/b in a ratio a : b?

  • Duplicate
  • Antecedent (correct)
  • Consequent
  • Triplicate

In the given ratio a : b, what does 'a' represent?

  • Second term
  • Triplicate ratio
  • Antecedent (correct)
  • Duplicate ratio

What can be determined if the ratio of boys to girls in a school is given along with the total number of students?

<p>The total number of girls in the school (D)</p> Signup and view all the answers

What type of ratio is used when a certain sum of money is divided into three parts in a given ratio?

<p>Triplicate ratio (C)</p> Signup and view all the answers

Which type of ratio involves the comparison of the same kind of quantities by division?

<p>Compound ratio (B)</p> Signup and view all the answers

In the ratio 12 : 16, what is the first term?

<p>12 (B)</p> Signup and view all the answers

What is the correct way to express the ratio 25 minutes to 45 seconds?

<p>1500/45 : 100/3 (A)</p> Signup and view all the answers

What is the factor multiplying ratio if a quantity increases in the ratio 7 : 6?

<p>6/7 (D)</p> Signup and view all the answers

If Rounaq's original weight is 56.7 kg and he reduces his weight in the ratio 7 : 6, what is his new weight?

<p>48.6 kg (A)</p> Signup and view all the answers

How would you simplify the ratio 1/3 : 1/8 : 1/6?

<p>8:3:4 (B)</p> Signup and view all the answers

What does it mean when it is said that 'the order of the terms in a ratio is important'?

<p>The ratio is different if the terms are reversed. (D)</p> Signup and view all the answers

In which situation would no ratio exist?

<p>(ii) There is no ratio between the weight of one child and the age of another child. (D)</p> Signup and view all the answers

Why is it important for quantities to be compared in the same units when finding a ratio?

<p>To ensure accurate comparison. (B)</p> Signup and view all the answers

(i) What is the ratio between 150 gm and 2 kg? (ii) What is the ratio between 25 minutes and 45 seconds?

<p>(i) 150 : 2000, (ii) 1500 : 100 (C)</p> Signup and view all the answers

(i) How would you compare two ratios? (ii) How did we compare the ratios '2 1/3 : 3 1/3' and '3.6 : 4.8'?

<p>(i) Convert them into equivalent like fractions. (ii) Found their lowest common multiple. (D)</p> Signup and view all the answers

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