MARKING SCHEME

2008 Autumn Paper 2 (Calculator allowed)2 Tier Alternative Foundation Tier Marks8. (a) Sum of the numbers (427)M1Sum/761m1A1POST CONFERENCE MARK SCHEME (18/11/2008)Comments (Page 2)For attempt to add the numbers.Unsupported 360 – 515 gets M1Dependent on the MC.A.O.(b) 35 54 54 60 66 72 86median = 609. (a) (£)40 ÷ 6.85 OR (£) 5.8(394...)5 CDs(b) 1/7 of 91 = 13 4/7 of 91 = 4 × 13= 5210. (a) (4, 3)(b) (i) Any one corr. pair of (2, −1) (−3, −1)(ii) A different corr. pair of (4, −1) (−1, −1)(2, 3) (−3, 3)11. a = 5b = 3c = 612. (a) (£)8.43 − 2.5 × (£)1.58= (£)4.484.48/3.5(b) 38 × 135100(c) 362713. Correct image(Allow ± 2mm)14. (a) x = (180 − 38)/2= 71= 51·3 I.S.W.(b) y = 360 – 90 – 82 – 136= 5215. 950 × 1.27= 1206(.5)1210 euros= (£)1.28Cost = (1210 ÷ 1.27)= (£) 952.75(59) (4) OR £953M1A15M1A1M1A14B1B1, B1B1, B15B1B1B13M1A1M1A1M1A1B1B18B22M1A1M1A14M1A1B1M1A15For putting the numbers in orderC.A.O.C.A.O.For any correct complete methodC.A.O.Use of decimals such as ·57 of 91 should get M1 then if A1awarded PA−1 should be applied, e.g 51·87 is M1, A1, PA−1C.A.O.C.A.O.C.A.O.In (b) reversed ‘correct’ coords throughout gets B2 only.Correct points marked on diagram (without coords) gets B2 only.If they offer a parallelogram congruent to ABCD, but using adifferent AB: SC1 for the correct coordinates of its ‘E and F’,if at least one negative number used in the coordinates,C.A.O.F.T. ‘their a’F.T. ‘their a’For the complete method that leads to cost of the pears.C.A.O.F.T. ‘their 4.48. 8.43/3.5 gets M0, A0Reversal of pears and apples is MR–1. (£2.90 and £1.16)Allow M1 for methods such as 10% = 13·530% = 40·5, 5% = 6·75 etc as long as there isC.A.O. enough correct work to convince that theyAllow 51·3% understand percentages and are finding 38% bya proper method of partitioning.C.A.O.F.T. ‘their 36’ – 9If not all correct, then B1 for three correct vertices.Use of a different scale factor should be marked then MR−1C.A.O.C.A.O.C.A.O.F.T. rounding up their answer to nearest 5 eurosF.T. ‘their 1210’ OR even unsupported 1205Accept (£) 952.75 OR 952.765