case study questions on direct and inverse proportion class 8

Case Study Questions for Class 8 Maths Chapter 13 Direct and Inverse Proportion. Last modified on: 1 year ago; Reading Time: 2 Minutes; ... Maths Class 8 Chapter 13 Direct and Inverse Proportion; Maths: CBSE Class 8: Chapter Covered: Class 8 Maths Chapter 13: Topics: Type of Questions: Case Study Questions:

Direct and Inverse Proportions Class 8 Extra Questions Short Answer Type. Question 11. The volume of a gas V varies inversely as the pressure P for a given mass of the gas. Fill in the blank spaces in the following table: Solution: Since volume and pressure are inversely proportional. PV = K. Question 12. The cost of 5 metres of cloth is ₹ 210.

Important Direct and Inverse Proportion Questions (With Solutions) 1. If the increase in time causes a corresponding decrease in the price of a product. Identify the proportionality. Solution: As per the given question, the increase in time reduces the price of a product. Thus, Time ∝ 1/Product Price.

1. y. 2. • Two quantities x and y are said to be in inverse proportion if an increase in x causes a proportional decrease in y and vice-versa, in such a manner that the product of their corresponding values remains constant. That is, xy = k where k is a positive number, if x and y are in inverse proportion. In this case, if y 1, y.

Study Important Questions for Class 8 Maths Chapter 11 - Direct and Inverse proportions. Very Short Answer Type Questions. 1. If two quantities x and y are in direct proportion with each other, then: (a) x y remains constant. (b) x × y remains constant. (c) x - y remains constant. (d) None of these. Ans: (a) x y remains constant.

NCERT Solutions Class 8 Maths Chapter 13 - Free PDF Download. NCERT Solutions for Class 8 Maths Chapter 13 Direct and Inverse Proportions is designed with the aim of helping students practise more and more questions and clear their doubts related to the concepts and topics in this chapter. Set of CBSE Class 8 Maths questions has been structured and answered in an easy and logical manner ...

NCERT solutions maths for Class 8 Chapter 13 are well-formed by experts to develop students' reasoning and analytical thinking. The simple and efficient format of the exercises and sample problems composed in these solutions are proficient at delivering the understanding of Direct and Inverse Proportions. To prepare with these exercises ...

Class 8. 12 units · 58 skills. Unit 1. Rational Numbers. Unit 2. ... Direct and Inverse proportions 11.1 Get 7 of 10 questions to level up! Direct and Inverse proportions 11.2 ... : table (Opens a modal) Practice. Direct and Inverse proportions 11.2 Get 7 of 10 questions to level up! Word problems on direct and inverse proportion Get 3 of 4 ...

Get NCERT Solutions of Chapter 11 Class 8 Direct and Inverse Proportions free at Teachoo. All exercise questions, examples and concepts have been explained in a step-by-step way for you easy understanding. In this chapter, we will study. What are things in Direct Proportion, and how to solve Direct Proportion Questions.

Table of Content. 1. NCERT Solutions for Class 8 Maths Chapter 11 Direct and Inverse Proportions - FREE PDF Download. 2. Glance on Maths Chapter 11 Class 8 - Direct and Inverse Proportions. 3. Access Exercise wise NCERT Solutions for Chapter 11 Maths Class 8. 4.

Test for Direct and Inverse Proportions. Total time: 25 min. Total Marks: 20. 1. A 10 m 50 cm high vertical pole casts a shadow 6 m long. Find at the same time the length of the shadow cast by another pole 5 m 60 cm high. (2 Marks) 2. A loaded truck travels 168 km in 5 hours.

Important Questions Class 8 Mathematics Chapter 13 - Direct and Indirect Proportions. Mathematics is one of the most engaging subjects, which requires students of all classes to engross themselves in the concepts and hypotheses relevant to the subject. Class 8 Mathematics Chapter 13 is about Direct and Indirect Proportion.

NCERT solutions for Mathematics Mathematics Class 8 CBSE 13 (Direct and Inverse Proportions) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

Direct And Inverse Proportion Class 8 Extra Questions With Solutions Question 4. If x 1 = 5, y 1 = 7.5, x 2 = 7.5 then find y 2 if x and y vary directly. Since x and y vary directly. Hence, the required value is 11.25. Direct And Inverse Variation Class 8 Question 5. If 3 kg of sugar contains 9 × 10 8 crystals.

NCERT Solutions for Class 8 Maths Chapter 13 Direct And Inverse Proportions are provided below. Our solutions covered each questions of the chapter and explains every concept with a clarified explanation. To score good marks in Class 8 Mathematics examination, it is advised to solve questions provided at the end of each chapter in the NCERT ...

Click on "Take Another Test" button and take as many tests as you like. Strengthen your understanding of Direct and Inverse Proportions in CBSE Class 8 Maths through competency based questions. Acquire in-depth knowledge and improve problem-solving abilities with comprehensive solutions.

So when x and y are in direct proportion, we can write x 1 y 1 = x 2 y 2 [y 1, y 2 are values of y corresponding to the values x 1, x 2 of x respectively] The consumption of petrol and the distance travelled by a car is a case of direct proportion. Similarly, the total amount spent and the number of articles purchased is also an example of ...

Click here to get more information about direct and inverse proportions. Direct and Inverse Proportion Questions and Answers. 1. Suppose x and y are in inverse proportion. If y = 12 then x = 4, find the value of y when x = 8. Solution: Given, x and y are in inverse proportion. x ∝ 1/y . 4 = k/12 (where k is a constant) k = 4 × 12 = 48

30 °. (i) Yes, the number of spokes and the angles formed between a pair of consecutive spokes is in inverse proportion. (ii) When the number of spokes is 15, then angle between a pair of consecutive spokes= 360 ° /15 = 24 °. (iii) The number of spokes would be needed = 360 ° /40 = 9 °. 4.

Direct and Inverse Proportions Class 8 Extra Questions Short Answer Type. Question 11. The volume of a gas V varies inversely as the pressure P for a given mass of the gas. Fill in the blank spaces in the following table:

Otherwise, they are not in direct proportion. x /y = 4/40 = 8/80 = 12/120 = 24/240 = 1/10. Here, (1/10) is constant and is called the constant of proportion. You can easily observe that all these ratios are equal. So they are in Direct Proportion. Problem 4: If the cost of 35 rice bags of the same size is Rs. 28,000.

NCERT class 8 mathematics chapter 11 - "Direct and Inverse Proportions" teaches us that two quantities x and y are said to be in direct proportion if they increase (decrease) together in such a manner that the ratio of their corresponding values remains constant. For the CBSE exams, practice multiple-choice questions (MCQs) to prepare for…

Steps To Attempt The Direct and Inverse Proportions Class 8 MCQ. If students want to attempt Direct and Inverse Proportions class 8 MCQ, they need to follow the following steps: The first step is to go to the official website of selfstudys i.e. selfstudys.com. Click on the three lines on the upper left side, and then tap on the 'CBSE ...

4 × 90° = x1 × 8. Similarly, and. Thus, the following table is obtained. (i) Yes, the number of spokes and the angles formed between the pairs of consecutive spokes are in inverse proportion. (ii) Let the angle between a pair of consecutive spokes on a wheel with 15 spokes be x. Therefore, 4 × 90° = 15 × x.