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Mark Scheme (Provisional) Summer 2021 Pearson Edexcel International GCSE In Mathematics A (4MA1) Paper 1H

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International GCSE Maths Apart from questions 7b, 11a, 11b, 13, 14, 16, 20, 23, 26 (where the mark scheme states otherwise) the correct answer, unless clearly obtained from an incorrect method, shou ... ld be taken to imply a correct method. Question Working Answer Mark Notes 1 For [8 hours 12 minutes =] 8.2 [hours] or 8 12 60 oe or 41 5 oe or 8 × 60 + 12 (= 492) [minutes] 3 B1 For correctly writing the time as a time in hours or minutes or for a correct calculation to do this [Average speed =] 5658 8.2 oe eg 5658 60 "492"  oe M1 For use of speed = distance ÷ time (use of their time in hours – if used minutes, then must multiply by 60) (allow 5658 ÷ 8.12 (= 696.79…) for this mark if B0 awarded (allow 696 – 697)) Working not required, so correct answer scores full marks (unless from obvious incorrect working) 690 A1 Total 3 marks 2 91 – 6n 2 B2 For a correct answer in any form eg 91 – 6 × n or –6n + 91 or 85 + (n – 1)(–6) oe (B1 for −6n + k oe (k may be zero or absent)) NB: award full marks for eg x = 91 – 6n or nth term = 91 – 6n but only B1 for n = 91 – 6n Total 2 marks http://britishstudentroom.wordpress.com/3 8 × x (= 8x) or 14 × x (= 14x) or (14 – 8) × x (= 6x) or ½ × (14 – 8) × (13 – x) (= 39 – 3x) or 13 (14 8)( 39 3 ) 2 x x +  − = + or ½ × 13 × (14– 8) (=39) or 8 14 2 x +  (= 11x) or 14 × 13 (=182) or 8 × (13 – x) (= 104 – 8x) or 8 14 (13 ) 2 x   +    −   (= 143 – 11x) oe 4 M1 one correct area linked to the shape 14x + 6 × ½ × (13 – x) oe eg 8 6 13 2 x x + +  or 8 14 13 (14 8) 2 2 x +  −  + or “182” – 8 14 (13 ) 2 x   +    −   or 11x + 39 oe M1 ft from correct working expression for total area of shape – with no parts omitted or duplicated Adding up parts of given shape or large rectangle subtracting trapezium (or subtracting (rectangle + triangle)) eg 11x + 39 = 91.8 or 14x + 39 – 3x = 91.8 or 182 – 143 + 11x = 91.8 or 16x + 6x + 78 = 183.6 oe M1 fully correct equation with no fractions (allow 91.8 or multiples of 91.8 but no other decimals) and no brackets Working not required, so correct answer scores full marks (unless from obvious incorrect working) 4.8 A1 or 4 4 oe 5 or 24 oe [Show More]

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