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Examen
0s1 9FM0-3D Decision 1 questions with accurate &verified answers latest 2024/202
A Level Decision Mathematics 1 Mock Paper Set 1 (9FM0/3D)	Mark Scheme 
 
 
 
Question	Scheme	Marks	AOs 
3. (a)	(NNA route from A is AFCDEBA):	M1	1.1b 
	(x – 5) + (x – 7) + ( x – 3) + ( x – 5) + (x –3) + 19 = 5x – 4	M1	1.1b 
	(NNA route from D is DEBFCAD):		 
	(x – 5) + (x – 3) + (x – 2) + ( x – 7) + (x + 4) + (x – 2) = 6x – 15		 
		A1	1.1b 
	(5x – 4) + 2 = 6x – 15	M1	2.1 
	x = 13	A1	2.2a 
		(5)	 
(b)	The Nearest Neighbour Algorithm finds an upper bound for the route (...