Teachoo MCQ Test

Short Quiz

Preparing for CBSE

Chapter 7 Class 8 - Proportional Reasoning-1 (Ganita Prakash) | 5 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 480
Question 1 of 5
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Question 1 of 5
Assertion (A): If equal volumes of gold and water have mass ratio \(37:2\), then 1 L of gold has mass 18.5 kg when 1 L of water has mass 1 kg.
Reason (R): The water term 2 represents 1 kg, so the gold term 37 represents \(37\div2\) kg.
Select one option. Answers are shown after the test.
Question 2 of 5
Assertion (A): \(14:21::6:9\).
Reason (R): \(14\times9=21\times6\).
Select one option. Answers are shown after the test.
Question 3 of 5
Assertion (A): \(24:36\) simplifies to \(2:3\).
Reason (R): Both 24 and 36 are even numbers.
Select one option. Answers are shown after the test.
Question 4 of 5
Assertion (A): For a fixed journey, the situation cannot be modelled as \(50:2::75:x\) for speed and time.
Reason (R): A higher speed makes the same journey take more time.
Select one option. Answers are shown after the test.
Question 5 of 5
Assertion (A): The simplest form of \(12:18\) is \(2:3\).
Reason (R): Dividing both terms of \(12:18\) by 6 gives \(2:3\).
Select one option. Answers are shown after the test.