YTSS S4 Prelim 2024 P1 w Ans Key

NAME: ( ) CLASS: YISHUN TOWN SECONDARY SCHOOL PRELIMINARY EXAMINATION 2024 SECONDARY 4 EXPRESS MATHEMATICS PAPER 1 (4052/01) DATE : 16 August 2024 DAY : Friday DURATION : 2 h 15 min MARKS : 90 READ THESE INSTRUCTIONS FIRST Do not turn over the cover page until you are told to do so. Write your name, class and class index number in the spaces at the top of this page. Write in dark blue or black pen. You may use a pencil for any diagrams or graphs. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all the 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  , use either your calculator value or 3.142, unless the question requires the answer in terms of  . The number of marks is given in brackets [ ] at the end of each question or part question. The total of the marks for this paper is 90. MARKS OBTAINED FULL 1 1 2 2 3 2 4 2 5 2 6 2 7 2 8 3 9 4 10 4 11 4 12 4 13 4 14 4 15 4 16 4 17 4 18 4 19 4 20 4 21 4 22 5 23 5 24 5 25 7 TOTAL 90 This question paper consists of 25 printed pages and 1 blank page. O

2 2024 YTSS Preliminary Exam Secondary 4 Mathematics EXP (4052/01) Mathematical Formulae Compound interest Total amount = n rP      + 1001 Mensuration Curved surface area of a cone = rl Surface area of a sphere = 24 r Volume of a cone = hr 2 3 1 Volume of a sphere = 3 3 4 r Area of triangle ABC = Cab sin2 1 Arc length = r , where  is in radians Sector area = 2 2 1 r , where  is in radians Trigonometry C c B b A a sinsinsin == Abccba cos2222 −+= Statistics Mean = f fx   Standard deviation = 22        −  f fx f fx

3 2024 YTSS Preliminary Exam Secondary 4 Mathematics EXP (4052/01) [Turn over Answer all the questions. 1 Calculate 3 390.1 32.02 0.731+ , giving your answer correct to 2 significant figures. Answer ........................................ [1] 2 The sine of an angle is 0.6310. Give two possible values for the angle in radians. Answer ............... or ............... rad [2] 3 The cost of a meal at a restaurant is $20.60 before service charge and Goods and Services Tax (GST). Find the total cost of the meal inclusive of a 10% service charge and 9% GST. Answer $ .................................. [2]

4 2024 YTSS Preliminary Exam Secondary 4 Mathematics EXP (4052/01) 4 The graph shows