Class 8 CASE STUDY BASED QUESTIONS | NCERT & DAV Class 8 Maths | CBSE Pattern 2025
Updated Feb 21 2026
Class 8 CASE STUDY BASED QUESTIONS |NCERT & DAV Class 8 Maths | CBSE Pattern 2025
Class 8 Maths Case Study Based Questions are very important for students preparing according to the latest CBSE competency based pattern. These questions are designed as per NCERT Class 8 Maths textbook and are also very useful for DAV School students studying from DAV Class 8 Maths book.
In recent exams, case study based questions are frequently asked to test conceptual understanding, logical reasoning and application skills. Here we are providing important case study questions for Class 8 Maths which are useful for school exams, unit tests, half yearly exams and final exams.
📘 Case Study Based Questions for Class 8 Maths (NCERT & DAV)
The above case study question is based on real life application of mathematics. Such competency based questions help Class 8 students to understand concepts clearly. These types of questions are important for CBSE as well as DAV school examinations. Students should carefully read the case study and solve the questions step by step.
Class 8 CASE STUDY BASED QUESTIONS
📗 More Case Study Questions for Class 8 Maths Students
Class 8 Case Study based question-1.
Sachin goes to a shop and purchased the washing machine and microwave. The Marked price of washing machine is rupees 20000 and shopkeeper allows a discount of 10% on it. While market price of microwave is rupees 5000. Shopkeeper allows a discount of 20% on it.
Based on the above information answer the following questions.
1) selling price of washing machine is (in Rs)
a. 19,900 b. 22,000 c. 10,000 d. 18,000
2) Discount on the microwave is (in Rs)
a. 4,800 b. 4,000 c. 1,000. d. 4980
3) Ratio of selling price of washing machine and microwave is
a. 9:2 b. 2:9 c. 11:2 d. 5:3
4) Total SP of washing machine and microwave is ( in Rs)
a. 24,000 b. 28,000 c. 26,000 d. 22,000
5) Sachin sold the washing machine at a loss of 12%. Find the SP of washing machine(in Rs)
a. 15,840 b. 16,200 c. 20,160 d. 17,600
Answers of Class 8 Case Study based question-1
1.(d)18,000 2. (c) 4,000 3.(a) 9:2 4.(d)22,000 5.(d) 17,600
Class 8 Case Study based question-2
Single use plastic bottles contribute to pollution, harming marine life and ecosystems and perpetuating the cycle of plastic waste. We must advocate for sustainable alternatives and educate others about the importance of reducing plastic consumption for both personal and planetary health. Using a reusable water bottles is an easy way to reduce environmental impact, save money and promote healthy hydration habits. A hydroflask company is designing a new line of reusable water bottles. The manager of the company proposed a cylindrical bottle design with the cap having a diameter of base as 7 cm and height 20 cm.
Based on the above information answer the following questions
(i) Find the capacity of the bottle in ml.
(ii) How many times will the volume of the bottle becomes if the radius of the base is doubled?
(iii) If the company got a bulk order of 500 bottles, find the area of transparent sheet required to cover the original design Water bottles completely( assuming there is no wastage)
(iv) The bottles are to be packed in the cuboidal box of dimensions 22 cm X 8cm X 8cm and all the boxes are to be placed in a cartoon of dimensions 88cm×80cm × 80cm. How many boxes of bottles can be placed in it ?
Answers Answers of Class 8 Case Study based question-2
(i) 770 ml (ii) 4 times (iii) 2,58,500 cm² (iv) 400
Class 8 Case Study based question-3
Answers of Class 8 Case Study based question-3
(i) Rs 765 (ii) Rs 6,900 (iii) 42.5% OR Rs 6,000
Class 8 Case Study based question-4
After Senior Secondary examination, students have craze about a new face of college life. They opped courses of their choice.
The given pie chart shows the number of students admitted in different faculties of a college in a particular year. If thousand students are admitted in Science then answer the following questions based on the given information.
Answers of case study based question -4Â Â Â Â Â Â Â Â Â Â Â Â Â
(i) 3600
(ii) 300
(iii) 24 : 13
(iv) ₹2,25,000
Class 8 Case Study based question-5
Arihant is a Jeweller. He deals in gold and diamond jewellery. In a festive season he offered a discount of 25% on the marked price of the jewellery. A customer bought a pair of earrings from him and after allowing the discount he still makes a profit of 16% on it. His profit was Rs 4800 on selling the earrings.
Answers of Class 8 Case Study based question-5
(i) ₹30,000 (Option b)  (ii) ₹34,800 (Option a)  (iii) ₹46,400  OR  ₹48,000
