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Centre Number Candidate Number Name UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS Cambridge Checkpoint MATHEMATICS 1112/01 Paper 1 November 2005 1 hour Candidates answer on the question paper Additional Materials: Protractor Ruler NO CALCULATOR ALLOWED READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen in the spaces provided on the Question Paper. You are not allowed to use a calculator. Answer all questions. You may use a soft pencil for any diagrams or graphs. You should show all your working in the booklet. The total number of marks for this paper is 50. The number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 10 printed pages and 2 blank pages. IB05 11_1112_01/FP  UCLES 2005 [Turn over

2 © UCLES 2005 1112/01/N/05 1 Look at these numbers. 5 6 7 8 9 10 Using only the numbers above, write down (a) a prime number, [1] (b) a square number, [1] (c) a factor of 55, [1] (d) 36, [1] (e) a cube number. [1]

3 © UCLES 2005 1112/01/N/05 [Turn over 2 Write the correct number to go in each box. (a) 3 × = 21 [1] (b) half of 25 = [1] (c) –101 = 200 [1] (d) 23 ÷ 1000 = [1] (e) 7 + 10 ÷ = 9 [1]

4 © UCLES 2005 1112/01/N/05 3 A box contains 20 computer discs. (a) 52 of the discs are used. (i) Write 52 as a decimal. [1] (ii) Write 52 as a percentage. % [1] (iii) Work out how many discs are used. [1] (b) 30% of the discs are damaged. Write this as a fraction in its simplest form. [2]

5 © UCLES 2005 1112/01/N/05 [Turn over 4 A school team plays nine football matches. The list shows the number of goals scored in each match. 1 0 5 8 1 5 0 5 2 (a) Write down the range of goals scored. [1] (b) Write down the modal number of goals scored. [1] (c) Work out the median number of goals scored. [1] (d) Work out the mean number of goals scored. [2]

6 © UCLES 2005 1112/01/N/05 5 (a) Show that 34 × 1.2 = 40.8 . [2] (b) Use part (a) to write down the value of (i) 3.4 × 1.2, [1] (ii) 340 × 0.12, [1] (iii) 17 × 12. [1]

7 © UCLES 2005 1112/01/N/05 [Turn over 6 Find the value of the following expressions when r = 4, e = 5 and x = 6. (a) 5r + 3 x + 2 e [1] (b) xre 3 [2] (c) 4e² [2]

8 © UCLES 2005 1112/01/N/05 7 (a) Complete the table of values for y = –3x + 2. x –2 –1 0 1 2 y 5 2 [2] (b) Use your results to plot the graph of y = –3 x + 2 on the grid below. 8 7 6 5 4 3 2 1 _ 1 _ 2 _ 3 _ 4 _ 5 _ 60 32 _ 1 _ 2 _ 31 y = 2x _ 3 y x [2] (c) The graph of y =2x –3 has been drawn on the grid above. Use the two graphs to solve the simultaneous equations y = –3x + 2, y = 2x – 3. x = [1] y = [1]

9 © UCLES 2005 1112/01/N/05 [Turn over 8 Solve the following equations. (a) 4x + 7 = 19 x = [2] (b) 3( x – 2) = 12 x = [3] 9 Write the number 53 467 (a) correct to the nearest 10, [1] (b) correct to three significant figures, [1] (c) in standard form. [2]

10 © UCLES 2005 1112/01/N/05 10 The table shows some time differences. It is not complete. City Hours difference from London Los Angeles –10 Mexico City –6 Buenos Aires London 0 Johannesburg +2 Riyadh Wellington +12 (a) Write down the time difference between (i) Los Angeles and Johannesburg, hours [1] (ii) Johannesburg and Wellington, hours [1] (iii) Los Angeles and Mexico City. hours [1] (b) Malik flies from Los Angeles to Riyadh. The time difference is 13 hours. How many hours ahead of London is Riyadh? [1] (c) Ellis flies from Johannesburg to Buenos Ai res. The time difference is 5 hours. How many hours is Buenos Aires behind London? [1]

11 1112/01/N/05 BLANK PAGE

12 Permission to reproduce items where third-party owned material protected by copyright is included has been sought and\ cleared w here possible. Every reasonable effort has been made by the publisher (UCLES) to t race copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opport\ unity. University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge. 1112/01/N/05 BLANK PAGE