CBSE Mathematics Class VIII | Sample Paper -1 |

CBSE Mathematics Class VIII | Sample Paper -1 |

Class-VIII

Time: 3 hour

Subject- Mathematics M.M.-80

All questions are compulsory.

  1. Multiple choice question-
  • A bat is bought for 120 and sold for 105. Loss percent is.
  • 15% b-  12 %             c-  16                 d-  14%
  • 5 % of 0 number is 9. The number is
  • 45 b- 90                    c- 135                  d- 180
  • If 5t – 3 = 3t – 5, then  t = ?
  • 1 b- -1                     c- 2                       d-  -2
  • 2 – 50x3 = ?
  • 2(1-5x)2                                        c- (1+5x)
  • (2-5x) (2+5x)                    d- 2 (1-5x) (1+5x)
  • (82)2 – (18)2  = ?
  • 8218 b- 6418                c- 6400                d- 7204
  • If 5×6 is exactly divisible by 3 , then the least value of x is,
  • 0 b- 1                      c- 2                      d-  3

100              b- 40                    c- 20                    d- 30

  • Which of the following numbers is not a perfect square?
  • 1444 b- 3136               c- 961                  d- 2222
  • A die is thrown , what is the probability of getting an even Number?
  •                       b-                        c-                        d-
  • In Which of the following quadrants does the point (-7, -1) lie ?
  1. I b- II                     c-  III          d-  IV

 

  1. 2 Marks each question-
  • Find the gain and loss percent when CP = 675 and SP = 630.
  • Express 125% as a ratio.
  • Solve : 5x + 7 = 2x-8
  • Find products : (3x2 + 5x – 9) x (3x-5)
  • Evaluate : ()3

 

  1. 3 marks each question-
  • Manjit brought an iron safe for 5580 and paid 170 for its transportation. Then he sold it for Find the gain percent earned by him.
  • Find 4% of 3600.
  • If 16% of a number is 72, find the number.
  • of a number is 20 less than the original number. Find the number.
  • The two adjacent sides of a rectangle are 5x2-3y2 and x2+2xy. Find the perimeter.
  • The unit digit of a two digit number is 3 and seven times the sum of the digits is the number itself. Find the number.
  • Write a Pythagorean triplet whose smallest member is 14.
  • Find the least number which must be subtracted from 7581 to obtain a perfect square.
  • A coin is tossed . what are all possible outcomes.
  • Two coin are tossed Simultaneously . what are all possible outcomes.

 

  1. Write true and False-
  • (5-3x2) is a binomial.
  • -8 is a monomial.
  • 2x-5 = 0 = x =

 

  1. 6 marks each question-
  • The height of mount Everest is 8848m. write it in standard form the speed of light is 300000000 m/sec. Express it in standard form.
  • Factorise-
  • X2 + 8x+16 b- y2 +10y+24
  • If (x+) = 4 find the values of (i) (x2+  )  and (ii) (x4 +  ).
  • Draw the graph of the function p = 4x
  • From the graph find the value of P, when
  1. x = 3 ii) x = 4               iii) x = 6

 

  1. Fill in the blanks-
  • The square of an even number is ……………………
  • The square of an odd number is ……………………
  • The square of a proper fraction is ………………….
  • N2 =  the sum of first n ………………… natural numbers.
  • = ……………………
  • 1+3+5+7+9+11+13 = (………)2

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