2023 S4NA Prelim MA PresHigh P1_MS

Name: Register Number: Class: PRESBYTERIAN HIGH SCHOOL MATHEMATICS 4045/01 PAPER 1 31 July 2023 Monday 2 hours PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERI AN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL PRESBYTERIAN HIGH SCHOOL 2023 SECONDARY FOUR NORMAL PRELIMINARY EXAMINATION MARK SCHEME

Answer all the questions. 1 65% 5  0.6 0.4 5 8 Write these numbers in order of size, starting with the smallest. [2] 0.6, 5 8 , 5  , 0.4 , 65% B1 for any 2 correct 2 Find the smallest integer satisfying 4 75x− . [2] 4 75x− 318 4x− smallest integer = –18 B1 B1 3 In a class of 40 pupils, 26 are boys. 10 of the boys wear spectacles and 7 3 of the girls wear spectacles. (a) Write the ratio boys : girls in its simplest form. [1] (b) Write the ratio boys who wear spectacles : girls who wear spectacles in its simplest form. [1] boys : girls 13 : 7 B1 boys wear spec: girls wear spec 10 : 6 5 : 3 B1

4 The graph shows the number of points collected by a football team for the football league seasons in 2021 and 2022 respectively. State one feature of the graph that may be misleading and explain why. [2] Answer The vertical axis does not start from zero. It makes the difference in values on the vertical axis exaggerated./ It looks like the points collected in 2021 is triple of those collected in 2022. B1 B1 5 James bought 24 Snickers, 60 Mars and 72 M&M chocolates. If each type of chocolate is distributed equally into a number of party goodie bags, what is the greatest number of goodie bags that can be prepared? [2] 324 2 3= 260 2 3 5=   3272 2 3= 2HCF 2 3 12 bags = = B1 for any 2 prime factorisation B1 2021 2022 64 62 60 58 56 54 52 50 Points

6 Draw an enlargement of the figure using a scale factor of 3