# Class 8th Mathematics

**English**

**Math**>

**Algebra**

**12 - 14**

**Class 8th Mathematics**

Chapter 1 Rational Numbers

Chapter 2 Linear Equations in One Variable

Chapter 3 Understanding Quadilaterals

**1. What should be added to -5/4 to get -1? I. -1/4 II. 1/4III. 1IV. -3/4**

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**2. What should be subtracted from -5/4 to get -1? I. -1/4 II. 1/4III. 1IV. -3/4**

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**3. Which of the following is the identity element? I. 1 II. -1III. 0IV. None of these**

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**4. Which of the following lies between 0 and -1? I. 0 II. -3III. -2/3IV. 4/3**

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**5. Which of the following is the product of 7/8 and -4/21? I. -1/6 II. 1/12III. -16/63IV. -147/16**

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**6. Which of the following is the product of (-7/8) and 4/21? I. -1/6 II. 12III. -63/16IV. -16/147**

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**7. Which of the following is the reciprocal of the reciprocal of a rational number? I. -1 II. 1III. 0IV. The number itself**

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**8. If x is an even number, which is the next odd number? I. X + 1 II. X + 2 III. X - 1 IV. X - 2**

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**9. If the sum of two consecutive number is 15 and greater of them is x then the smaller number is: I. 16 II. 14 III. 8 IV. 7**

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**10. How old will I be after 10 years, if my age before 10 years was ‘x’ years? I. X + 20 II. X - 20 III. X + 10 IV. X ‐ 10**

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**11. If 2x/5 = 4, the value of x is- I. 10 II. -10 III. -8/5 IV. 8/5**

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**12. If the sum of two consecutive numbers is 71 and one number is x, then which equation is correct? I. x + (x+1) = 71 II. x + (x+2) = 71 III. x + x = 71 IV. none of these**

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**13. If 7x+15 = 50, then which of the following is the root of the equation? I. -5 II. 65/7 III. 5 IV. 1/5**

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**14. Two year ago my age was x years, then what was my age 5 years ago? I. X + 7 II. X - 2 - 5 III. X - 5 IV. X- 3**

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**15. The sides of a pentagon are produced in order. Which of the following is the sum of its exterior angles? (i) 540°(ii) 180°(iii) 720°(iv) 360°**

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**16. The perimeter of a parallelogram is 150 cm. One of its side is greater than the other by 25 cm. What is the length of smaller side of the parallelogram ?**

**I. 50 cmII. 75 cmIII. 25 cmIV. 60 cm**

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**17. If PQRS is a rhombus, the value of x and y**

x = 60° , y = 70°

x = 50° , y = 40°

x = 80° , y = 60°

x = 100° , y = 50°

**18. The value of y in the given parallelogram ABCD.I. 70°II. 60°III. 50°IV. 45°**

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**19. The length of diagonals AC and BD in the following figure where ABCD is a parallelogram.**

**I. AC = 22 and BD = 16 II. AC = 15 and BD = 15III. AC = 17 and BD = 20 IV. AC = 20 and BD = 15**

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**20. State whether True or False.**

**All kites are rhombuses.**

True

False