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Posted Date: 25 Mar 2010      Posted By:: Asha AR    Member Level: Bronze    Points: 5 (Rs. 1)

2009 8th class mathematics Annual examination 2009-2010 CBSE Question paper Course:   University/board: CBSE Choose the correct answer from the brackets:- Question 1 (1 mark) Square root of 121 is [11,19,10] Question 2 (1 mark) 2/3 x2 by x is [2/3x,3x,2x] Question 3 (1 mark) The number of times a particular observation occurs is called its [Class interval ,frequency ,Mean] Question 4 (1 mark) Volume of a sphere is ....... [4/3^r3 ,2/3^r3,1/3^r2h] Question 5 (1 mark) Area of a circle [^r2,2^r,2^rh] Question 6 (1 mark) Value of ^ is [#.14,31.4,.314] Question 7 (1 mark) Square root 25/36 is [6/5,5/6,56] Question 8 (1 mark) A parallelogram with a pair of adjacent sides equal is called ........ [Rectangle ,Square ,Rhombus] Question 9 (1 mark) Exponential form of root 5 [(5)1/2, 95)1/3 ,(5)1/4] Question 10 (1 mark) the length around a circle or the perimeter of a circle is known as its [Circumference,Area,Surface area] Fill in the blanks Question 11 (1 mark) If n=m3,m=......... Question 12 (1 mark) (a+b)3=........ Question 13 (1 mark) Opposite angels of a cyclic quadrilateral are .............. Question 14 (1 mark) Area of a parallelogram .......... Question 15 (1 mark) the plane end of a right circular cone is ........... Question 16 (1 mark) Lateral surface Area of a hemisphere is .......... Question 17 (1 mark) Mean m= ......... Question 18 (1 mark) Slant height ,l= .......... Question 19 (1 mark) Volume of a circle =....... Match the following (5*2=10 marks) Question 20 x2+10x+9 - 28d Question 21 Vertically opposites angles - (x+1) (x+9) Question 22 Radius, r is - equal Question 23 The frequency corresponding to a class interval is - bisect each other Question 24 In a parallelogram , diagonals are - class frequency Answer the following Question 25 (5 marks) The thickness of a metallic tube is 1cm and its outer radius is 11cm .Find the mass of such a 1m long tube ,if the density of the metal is 7.5g per cm3. Question 26 (5 marks) Curved surface are of an ice-cream cone of slant height 12cm is 113.04 cm2.Find the base radius of the cone. Question 27 (4 marks) Find the value of (625/81)1/4 Question 28 (4 marks) List price of a scooter is Rs 35000. It is available at a discount of 8%. Find the selling price of scooter ? Question 29 (5 marks) Find the cube root of 9261/42875 Question 30 (4 marks) Find the difference between the compound interest and simple interest on Rs 32000 at 12% per annum for 3 years ? Question 31 (4 marks) One number is 3 times another number if 15 is added to both the number then one of the new number becomes twice that of the other new number .F ind the number . Question 32 (4 marks) The ratio of two sides of a parallelogram is 3:5 and its perimeter is 48cm . f ind the sides of the parallelogram. Question 33 (4 marks) Construct a quadrilateral ABCD in which Ab=4.5cm,BC=4cm,CD=6.5cm,DA= 3cm and BD=6.5cm. Question 34 (3 marks) Factorise m2+4n2+25z2-4mn-20nz+10mz Question 35 (5 marks) Two circles having the same centre have radii 350m and 490m . What is the difference in their circumference ? Question 36 (5 marks ) The radius of a hemispherical balloon increases from 7cm to 14cm as air is being pumped in to it . Find the ratio of surface areas of the balloon in the two cases Question 37 (7 1/2 marks) Weekly savings of 30 students of class 8 are 38,42,40,35,72,27,57,62,59,80,84,73,65,40,76,40,38,60,58,38,54,39,50,44,71,83,45,38,80 and 77. Construct a grouped frequency table with class intervals of equal width. Question 38 (7 1/2 marks) Construct a histogram the frequency distribution of weights of 40 persons of a locality is given below . Weights 40-45 45-50 50-55 55-60 60-65 Frequency 4 12 13 6 5 Return to question paper search

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