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ICSE Board Exam 1996 : Mathematics

8 pages, 58 questions, 48 questions with responses, 176 total responses,

ICSE
Indian Certificate of Secondary Education (ICSE), New Delhi

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MATHEMATICS - 1996 (Two hours and a half) Answers to this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this Paper is the time allowed for writing the answers. Attempt all questions from Section A and any four questions from Section B. All working, i ncluding rough work, must be clearly shown and must be done on the same sheet as the rest of the answer. Omission of essential working will result in the loss of marks. The intended marks for questions or parts of questions are given in brackets [ ]. Mathematical tables are provided. S ECTION A (40 Marks) Attempt all questions from this Section. Question 1 A shopkeeper buys a box of 10 dozen apples for Rs. 180. He estimates that 20% of them would be rotten. He intends to sell each apple so as to make a profit of 60% on his cost, Assuming that 20% of the apples turn out to be rotten, find: (i) The number of good apples in the box; [2] (ii) The sum of money for which he should sell the good apples so as to make a profit of 60% on his cost; [2] (iii) The selling price of each apple in each the said profit. [2] Question 2 [6] A sum of Rs. 9,600 is invested for 3 years at 10% per annum at compound interest : (i) What is the sum due at the end of the first year. (ii) What is the sum due at the end of the second year. (iii) Find the compound interest earned in 2 years. (iv) Find the difference between the answers in (ii ) and (i) and find the interest on this sum for one year. .(v) Hence write down the compound interest for the third year. Question 3 [9] (a) The scale of a map is 1 : 200000. A plot of land of area 20 km2 is to be represented on the map, find: (i) The number of kilometres on the ground which is represented by 1 centimetre on the map. (ii) The area in km2 t hat can be represented by 1 cm2. (iii) The area on the map that represents the plot of land. (iii) The area on the map that represents the plot of land. (b) In the figure alongside (not drawn to scale), LM is parallel to BC : AB = 6cm, AL = 2cm and AC = 9cm. Calculate: (i) The length of CM ; (ii) The value of the ratio = Area of triangle ALM /Area of the trapezium LBCM . Question 4 Use ruler and compass only for the following question: Construct triangle BCP, where CB = 5 cm, BP = 4 cm, PBC = 45 . Complete the rectangle ABCD such that: (i) P is equidistant from AB and BC; [3] (ii) P is equidistant from C and D. M easure and write down the length of AB. [3] Question 5 The circumference of a circle is 123.2 cm. Taking = 22/7 , calculate: (i) The radius of the circle in cm; [2] (ii) The area of circle in cm2, correct to the nearest cm2; [2] (iii) The effect on the area of the circle if the radius is doubled. [2] Question 6 [7] A trader gives two successive discounts of 15% and 10% on the marked price of an article. (i) If the marked price was Rs. 100, what would be the selling price? (ii) The actual selling price is Rs. 7,650. Calculate the actual marked price. (iii) The actual marked price is 25% more than the cost price. Calculate: (1) The cost price; (2) The profit or loss percent. Question 7 [6] Point (3, 0) and ( 1, 0) are invariant points under reflection in the line Ll; points (0, 3) and (0, 1) are invariant points on reflection in line L2. (i) Name or write equations for the lines L1 and L2. (ii) Write down the images of points P(3, 4) and Q( 5, 2) on reflection in Ll. Name the images as P' and Q' respectively. (iii) Write down the image of P and Q on reflection in L2. Name the images as P" and Q " respectively. (iv) State or describe a single transformation that maps P' onto P". Question 8 [6] Use graph paper for this question. Use 2 cm = 1 unit on both axes. Plot the points A( 2, 4), B(2, 1) and C( 6, l). (i) Draw the line of symmetry of triangle ABC.. (ii) M ark the point D if the line in (i) and the line BC are both lines of symmetry of the quadrilateral ABCD; write down the co-ordinate of point D. (iii) What kind of quadrilateral is figure ABCD. (iv) Write down the equations of BC and the line of symmetry named in (i). S ECTION - B (48 Marks) Answer any four questions from this Section. Question 9 (a) The domain and range of a function f(x) = 3/x + 1 are subsets of A and B respectively, [6] where 1 A= { B= { 5, 0, 2 , 0, 4 2 3 , 1 2 6 7 ,1 , 5, 5 } 1 2 } List the elements of the function as ordered pairs. (b) A man borrows Rs. 5,800 at 12% per annum compound interest. He repays Rs.1,800 at the end of every six months. Calculate the amount outstanding at the end of the third payment, Give your answer to the nearest Re. [6] [4] (c) M atch the equations A, B, C, D with the lines L1, L2, L3, L4 whose graphs are roughly drawn in the L2 above diagram. A = y = 2x B = y 2x + 2 = 0 C = 3x + 2y = 6 D = y = 2. Graph in which lines L1, L2, L3 and L4 are shown. Question 10 [11] (a) A man invests a sum of money in Rs. 100 shares, paying 15% dividend quoted at 20% premium. If his annual dividend is Rs. 540, calculate: (i) His total investment; (ii) The rate of return on his investment. (b) The mid-point of the line segment AB shown in the diagram is (4, 3). Write down the coordinates of A, B. (c) In the figure; AC is the diameter of circle, centre O. Chord BD is perpendicular to AC. Write down the angles p, q, r in terms of x. Question 11 (a) Copy and write 'True' and 'False' against each of the following statements: [4] (i) The relation 'is greater than' in the set of integers is reflexive. (ii) The relation 'is similar to' in the set of triangles in transitive. (iii) The relation 'is perpendicular to' in the set of lines is transitive. (iv) The relation 'is a factor of in the set of integers is symmetric. Question 11 (b) P = {x : 5 < 2x 1 1l, x R} Q = {x : 1 3 + 4x < 23, x 1} Where R = ( real numbers), I = (integers) Represent P and Q on number lines. Write down the element P Q. [4] (c) Given f(x + 1) = 3x + 5, evaluate: (i) f( 2); (ii) f(2x). [4] Question 12 (a) Write down the equation of the line whose gradient is 3/2 and which passes through P, [4] where P divides the line segment joining A ( 2, 6) and B (3, 4) in the ratio 2 : 3. (b) Use ruler and compass only for this question. Construct the cyclic quadrilateral ABCD in which AB = 5 cm, BC = 8 crn, angle ABC = 67 and D is equidistant from B and C. D is equidistant from B and C. M easure and write down the length of CD. [4] (c) Use logarithms to evaluate: [4] 3 0.8314 72.8 Question 13 (a) The histogram represents the marks obtained by same candidates in an examination. Using the data in the diagram, calculate the mean mark. [4] (b) In the above figure, alongside ABCD is a parallelogram, P is a point on BC such that BP 2.4 2, : PC = 1 : 2. DP produced meets AB produced at Q. Given area of triangle CPQ = 20 cm calculate: (i) Area of triangle CDP; (ii) Area of parallelogram ABCD? [4] (c) In triangle ABC, AB = 12 cm, angle B = 58 , the perpendicular from A to BC meets it at D. The bisector of angle ABC meets AD at E. Calculate: 2.4 (i) The length of BD; (ii) The length of ED. Give your answers correct to one decimal place. [4] Question 14 (a) Use graph paper for this question. Take 2 cm = 2 unit on x-axis and 2 cm = 1 unit on y-axis. Solve graphically the following equations: 3x + 5y = 12; 3x 5y + 18 = 0 (Plot only three points per line) [4] (b) Evaluate x, y if [4] [ 3 2 1 4 ] [ 2x ] + 2 [ 4 ] = [ 1 5 8 4y ] (c) A train covers a distance of 600 km/hr. Had the speed been (x + 20) km/hr, the time taken to cover the distance would have been reduced by 5 hours. Write down an equation in x and Solve it to evaluate x. Question 15 [4] [10] (a) Use graph paper for this question. The following table shows the weights in gm of a sample of 100 potatoes taken from a large consignment: Weight(gm) Frequency 50 60 60 70 70 80 80 90 90 100 l00 110 110 120 120 130 8 10 12 16 18 14 12 10 (i) Calculate the cumulative frequencies. (ii) Draw the cumulative frequency curve and from it determine the median weight of the potatoes. (b) The figure below shows the cross section of an ice-cream cone consisting of a cone surmounted by a hemisphere. The radius of the hemisphere is 3-5 cm and the height of the cone is 10 5 cm. The outer shell ABCDEF is shaded and is not filled with ice-cream. AE = DC = 5 cm, AB//EF and BC//FD. Calculate: (i) The volume of the ice-cream in the cone (the unshaded portion including the hemisphere) in cm3; (ii) The volume of the outer shell (the shaded portion) in cm3. Give your answer correct to the nearest cm3.

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Additional Info : Solved ICSE Board exam paper study guide - ICSE 1996 : MATHEMATICS - I.C.S.E. Free Online Question Paper
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