JKBOSE Class 8th Mathematics Paper 2021-22

JKBOSE Class 8th Mathematics Paper 2021-22
CLASS-VIII
MATHEMATICS – T2
Time Allowed: 2:30 Hrs. Maximum Marks: 40

JKBOSE Class 8th Mathematics Paper 2021-22

Note: The students shall be required to attempt 80% of their choice, which is equivalent to 32 marks and the same shall be raised to 100% (40 marks) on a proportionate basis.

MULTIPLE CHOICE QUESTIONS

(Each question carries one mark)

Q.1. The value of x2 – 2x + 1 when x = 1 is

(a) 1

(b) 2

(c) -2

(d) 0.

Q.2. To construct a quadrilateral, we need to know two adjacent sides and angles.

(a) One

(b) Two

(c) Three

(d) All four angles

Q.3. Which of the following is, a binomial?

(a) 3xy

(b) 41 + 5m

(c) 2x+3y-5

(d) 4a – 7ab + 3b + 12

Q.4. How many terms are there in the expression 5xy + 9yz + 3zx + 5x – 4y?

(a) 1

(b) 3

(c) 4

(d) 5

Q.5. The coefficient of x2y in -15 x2y is

(a) 15

(b) -15

(c) 3

(d) 5

Q.6. The sum of x² – y², y² – z² and z² – x² is

(a) 0

(b) 3x²

(c) 3y²

(d) 3z²

Q.7. A polygon that has a minimum number of sides is:

(a) Triangle

(b) Square

(c) Rectangle

(d) Angle

Q.8. The area of a rectangle of length a and breadth b is

(a) a + b

(b) ab

(c) a² + b²

(d) 2ab

Q.9. The total surface area of a cylinder of base radius r and height h is

(a) 2πr (r+ h)

(b) πr (r+ h)

(c) 2 πrh

(d) 2 πr²

Q.10. The area of a rhombus is 60 cm2. One diagonal is 10 cm. The other diagonal is

(a) 6 cm

(b) 12 cm

(c) 3 cm

(d) 24 cm

Q.11. The area of a rhombus whose diagonals are of lengths 10 cm and 8.2 cm is:

(a) 41 cm²

(b) 82 cm²

(c) 410 cm²

(d) 820 cm²

Q.12. A cuboid has………. pairs of identical faces.

Q.13. Can we draw a square with a side length equal to 7cm?

(a) Yes

(b) No

(c) Cannot be determined

(d) None of the above

Q.14. Which of the following is the common factor of 25a2b and 55ab2?

(a) 5ab²

(b) 5a²b

(c) 5ab

(d) 5a²b²

Q.15. The factorization of x2yz + xy2z + xyz2 is

(a) xyz (x + y + z)

(b) x²yz (x + y + z)

(c) xy² (x + y + z)

(d) xyz² (x + y + z)

Q.16. The value of 10²² – 98² is……………….

Q.17. Which of the following is the factorization of x3 – x? 

(a) x (x² – x)

(b) x(1+x) (1 + x)

(c) x (x − x²)

(d) x (x + 1) (x − 1)

Q.18. The quotient of 12a8b8 ÷ (-4a6b) is

(a) 3a²b²

(b) 3a²b

(c) 3ab²

(d) -3a²b²

Q.19. All the sides of a regular polygon are:

(a) Equal in length

(b) Unequal in length

(c) Parallel to each other

(d) None of these

Q.20. Out of 60 students in a class, 25% passed. How many students passed?

(a) 10

(b) 15

(c) 30

(d) 40

Q.21. On what principle, the simple interest of 5 years at the rate of 6% is Rs 90?

(a) Rs 250

(b) Rs 300

(c) Rs 400

(d) Rs 450

Q.22. The discount is always calculated on which of the following?

(a) SP

(b) CP

(c) marked price

(d) none of these

Q.23. Mithlesh purchased a T.V. for Rs 10000 and sold it for Rs 8000. Find her loss %.

(a) 10%

(b) 20%

(c) 40%

(d) 60%.

Q.24. The simple interest on Rs 4000 for 2 years at 8% per annum is

(a) Rs 1809

(c) Rs 1200mny

(b) Rs 640

(d) Rs 1600

Q.25. The ratio of 5 km per hour to 500 m per hour is

(a) 1:10

(b) 10:1

(c) 1:5

(d) 5:1

Q.26. The ratio 4: 25 converted to percentage is 

(a) 8%

(b) 4%

(c) 16%

(d) 2%

Q.27. To construct a square, we need to know:

(a) All the interior angles

(b) All the side lengths

(c) Only one interior angle

(d) Only one side length

Q.28. A simple closed curve made up of only ……… is called a polygon.

(a) curves

(b) line segments

(c) lines

(d) closed curves

Q.29. Any number raised to the power zero is

(a) 1

(b) 0

(c) not defined

(d) none

Q.30. The value of (x) in the following figure is

(a) 120°

(b) 80°

(c) 100°

(d) 60°

Q.31. If the three angles of a quadrilateral are 120°, 130°, 10° then what is the fourth angle?

(a) 30°

(b) 100°

(c) 40°

(d) 90°

Q.32. There are 50 students in a class of which 40 are boys and the rest are girls. The ratio of the number of boys and the number of girls is

(a) 2:3

(b) 1:5

(c) 4:1

(d) 2:5

Q.33. Each square is a rectangle. (True/False)

Q.34. A ………. of a quadrilateral is a line segment connecting two non-consecutive vertices.

Q.35. The expression x + y + z is in

(a) One variable

(b) no variable

(c) three variables

(d) two variables

Q.36. Opposite faces of a cuboid are ……… in area.

Q.37. Two cylinders with equal volume will always have equal surface area. (True/False)

Q.38. Division is the opposite of………….

Q.39. Volume of a rectangular box with length 2x, breadth 3y, and height 4z is……….

Q.40. The product of two polynomials is a………….