0s1 9FM0-3D Decision 1 questions
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2024/2025
A Level Decision Mathematics 1 Mock Paper Set 1 (9FM0/3D)
Question Schem Marks AOs
e
1. (a)
M1 1.1b
a b Is a > b? Is a < b? Is a = b? Output A1 1.1b
70 168 No Yes
98 No
No Yes M1 1.1b
28 No
Yes
42 No No
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Yes
14 Yes A1 1.1b
14 Yes 14
(4)
(b) The algorithm finds the highest common factor of x and y… B1 2.4
so y must be a factor of x. B1 dep 2.2a
(2)
Total: 6 marks
Note
s
a1M1 Clear attempt at the first two lines of the table
a1A1 First four lines fully correct
a2M1 Attempt to apply algorithm to completion
a2A1 Fully complete answer including output
b1B1 Highest common factor … (oe e.g. x is a multiple of y)
b2B1 dep … of the input values (or “of x and y”; accept “of a and b”) – dependent on first B1