DAV Class 8 Maths Sample Paper 2024-25 with Solutions

DAV Class 8 Maths Sample Paper 2024-25 with Solutions

DAV Class 8 Maths Sample Paper 2024-25 with Solutions

DAV Class 8 Maths Sample Paper 2024-25 with Solutions

DAV Class 8 Maths Sample Paper 2024-25 with Solutions

DAV Class 8 Maths Sample Paper 2024-25 with Solutions

DAV Class 8 Maths Sample Paper 2024-25 with Solutions

CASE STUDY BASED QUESTIONS FOR PRACTICE CLASS 8

Case study based questions are compulsory. Attempt any four subparts of each question. Each subpart carries 1 mark.

Case Study Based –I

 A well is dug 20 m deep and it has a diameter 7 m. The earth which is so dug out is spread evenly on a rectangular plot 22 m long and 14 m broad.

Read the above statement and answer the following questions:

  1. What is the radius of the well.

          a) 7m               b) 20 m           c) 10 m               d) 3.5 m

ii. Which solid is represented by rectangular plot here.

          a) Cube                          b) cuboid                    c)cylinder                       d) none of these

iii. Which of the following statement is true.

  1. Volume of cube = volume of cylinder
    b. Volume of cuboid = volume of cylinder
    c. Volume of cuboid = volume of cube
    d. Both a and b

iv. What is the formula to calculate the volume of a cylinder.

          a)πr2h                             b) 2πrh                       c) lbh                                            d) 2πr(r + h)

v. What is the height of the platform so formed.

           a)7m                             b) 14m                           c) 3.5 m                        d) 2.5 m

  Case Study Based -II

Samar owns an Electronics Goods Shop. He sold a TV set for Rs 19,950 thus making a profit of 15% on it. He also sold a refrigerator for the same price but incurred a loss of 15 % on that. Based on this information answer the following:

a) The total S.P. of the TV set and the refrigerator is:-

(i) Rs 19,950                (ii) Rs 18,000                       (iii) Rs 39,100                    (iv) Rs 40,000

b) The C.P. of TV set is:-

(i) Rs 10,000                  (ii) Rs 15,000                    (iii) Rs 17,000                      (iv)Rs 19,550

c) The CP of the refrigerator is:-

(i)Rs 15,000                   (ii) Rs 17,000                   (iii) Rs 19,950                       (iv) Rs 23,000

d) The total CP of the TV set and the refrigerator is

(i) Rs 19,550                   (ii) Rs 38,000              (iii) Rs 39,100                      (iv)Rs40,000

e) The total profit or loss in this whole transaction of selling the two items is:-

(i) Profit of Rs 255         (ii) Profit of Rs 900      (iii) Loss of Rs 900       (iv) Loss of Rs 3,450

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