Dunman Sec_2025 Prelims 4EXP Math Paper 1 QP

This document consists of 22 printed pages. DUNMAN SECONDARY SCHOOL CANDIDATE NAME CLASS INDEX NUMBER PRELIMINARY EXAMINATION 2025 SECONDARY 4 EXPRESS/ 5 NORMAL ACADEMIC MATHEMATICS Paper 1 4052/01 19 August 2025 2 hours 15 minutes Candidates answer on the Question Paper. READ THESE INSTRUCTIONS FIRST Write your name, class and index number on all the work you hand in. Write in dark blue or black pen. You may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all questions. If working is needed for any question it must be shown with the answer. Omission of essential working will result in loss of marks. The use of an approved scientific calculator is expected, where appropriate. If the degree of accuracy is not specified in the question, and if the answer is not exact, give the answer to three significant figures. Give answers in degrees to one decimal place. For π, use either your calculator or 3.142, unless the question requires the answer in terms of π. The number of marks is given in brackets [ ] at the end of each question or part question. The total number of marks for this paper is 90. Calculator Model Total Marks

2 4052/01/PRELIM/4EXP5NA/2025 Mathematical Formulae Compound interest Total Amount = 1 100 n rP+ Mensuration Curved surface area of a cone = rl Surface area of a sphere = 24 r Volume of a cone = 21 3 rh Volume of a sphere = 34 3 r Area of triangle ABC = 1 sin2 ab C Arc length = r , where  is in radians Sector area = 21 2 r  , where  is in radians Trigonometry sin sin sin a b c A B C== a2 = b2 + c2 − 2bc cos A Statistics Mean = fx f   Standard deviation = 22fx fx ff  − 

3 4052/01/PRELIM/4EXP5NA/2025 [Turn Over 1 The graph below shows a company’s yearly revenue from 2020 to 2024. (a) State one misleading feature of the graph. ……………………………………………………………………………………………. ……………...…………………………………………………………………………...... [1] (b) Explain how this feature affects the reader’s interpretation of the graph. ……………………………………………………………………………………………. ……………...…………………………………………………………………………...... [1] 2 Sammi is travelling back to Singapore from Italy. She wants to change 830 euros (€) into Singapore dollars ($). The exchange rate in Italy is €1 = $1.4893. The exchange rate in Singapore is $1 = €0.6747. How many more Singapore dollars will she get by changing her money in Italy? Answer $ ….……………………… [2] Revenue ($ thousands) Year 500 0 1000 2020 2021 2022 2023 2024 Company’s Yearly Revenue Growth

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