ixth maths test paper 8 1st term- cbse

Sample Paper – 2010Class – IXSubject – Mathematics Questions 1 to 10 are 1 marks each. Each question is provided with 4 choices out of which only one is correct. Choose the correct one. If the mean of the observations x, x+3, x+5, x+7 and x+10 is 9, the mean of last three terms is (a) 10⅓ (b) 10⅔ (c) 10⅔ (d) 11⅓ To draw histogram to represent following distribustion CI 5–10 10–15 15–25 25–45 45–75 F 6 12 10 8 15 the adjusted frequency for class 25–45 is (a) 6 (b) 5 (c) 3 (d) 2 If every side of cube is doubled, its volume will become (a) twice (b) four times (c) eight times (d) thrice A tank 10m × 5m × 6m is full of water. How much water must be taken out to reduce the water level by 1m (a) 30m2 (b) 100m3 (c) 50m2 (d) none of these If x+3 divides x2 + kx + 12, then k = (a) 4 (b) 3 (c) 1 (d) 7 If a2 + 1 = 7, then a + 1 = a2 a (a) √7 (b) √5 (c) 3 (d) 2√2 If a + b+ c = 0, then a3 + b3 + c3 = (a) 3abc (b) 0 (c) abc (d) none of these If x = 9 and y = √17, then the value of (x2 – y2)–⅓ is (a) ½ (b) ¼ (c) –4 (d) 1 A cylindrical tank having internal radius and depth 7cm and 30cm respectively is given. How many litres of milk can be contained by the vessel (a) 4.62L (b) 4620000L (c) 46.2L (d) 462L A rational number between √2 and √3 is (a) √2 + √3 (b) √2 .√3 2 2 (c) 1.5 (d) 1.8 Questions 11 and 12 are 3 marks each Factorise 2x3 – 5x2 – 19x + 42 The total surface area of right circular cylinder is 231cm2. If its curved surface area is ⅔ of its total surface, determine its radius and height. Questions 13 is of 4 marks. The number of dolls produced by a factory per day in last 36 days are as follows 30 32 28 24 20 25 38 37 40 43 16 20 19 24 27 30 32 34 35 42 27 28 19 34 38 39 42 29 15 27 27 22 29 31 19 18 Prepare a frequency distribution table with a class size of 5. Find the range. How many days the production was less than 25 dolls. (2½ + 1 + ½ )