Mathematics · May / June 2021 · Paper 41 · Question 1
0580
As printed in the paper
Show the answer and mark scheme
1(a)(i)[2]
28 [2]
M1 for 32 × 0.50 + 30 × 0.40
1(a)(ii)[3]
98 – 100 × 0.5 48 ÷ 0.4 = 120 [minutes] = 2 [hrs] [9]
M3 M1 for 100 × 0.50 + x × 0.40 = 98 + = or 0.4 x =
M1 for 50 0.4 x 98 48 48 x =
M1 for x = 120 [min] = 2 [hr] 0.4 OR
M1 for 100 × 0.5 [ = 50 ]
M1 for 98 − 50 [ = 48 ]
M1 for 48 ÷ 0.4 = 120 min [ ] = 2 hr [ ]
1(b)[3]
2925 1170 4095 [3]
B2 for one correct answer
or M1 for 8190 ÷ (5 + 2 + 7)
1(c)[2]
58 [2]
45
M1 for 1 + 100 k = 84.1 oe
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