Mathematics · May / June 2022 · Paper 42 · Question 1
0580
As printed in the paper
Show the answer and mark scheme
1(a)[2]
150 [2]
B1 for answer 150k
or M1 for prime factors of 30 or 75 seen or a list of multiples of both 30 and 75 with at least 3 of each × or for 30 75 oe 15 or for answer 2 × 3 × 52
1(b)[3]
152 190 266 [3]
Accept in any order
B2 for two correct answers 608 7 ×
or M1 for k oe where k =1, 4, 5, 7 + + 4 5
1(c)[2]
2.61 × 10–2 2.61 10− × 2 or 2.608… × 10–2 [2]
B1 for figs 2608 or 261 seen If 0 scored,
SC1 for answer 2.6[0] × 10–2 without more accurate value in standard form seen
1(d)[1]
27 99 oe fraction [1]
1(e)[2]
2.8 g/cm3 or g cm–3 [1]
1
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