Mathematics · May / June 2020 · Paper 42 · Question 8

36 [2]

2 2 8 12

M1 for or oe 12 8

30 [3]

12 ÷ ×

M2 for 320 16 oe 8

or M1 for 320 ÷ 16

3.375 cao [4]

π 3 × 4.5 3 3

M2 for or better π × 6 2 4 π 6 π 4.5 × 2 × h = × × 3

or M1 for 3

3.63 or 3.627 to 3.628 [3]

3 20

M2 for 4 × π 40 3 4 × × × π 3 = 3 40 r 20

or M1 for 3

3 x or 1.5x or 1 12 x 2 [3]

B2 for 4 R 2 = 9 x 2 oe or better 7 x 4π 2 = 2π 2 + × π 2 ×

or M1 for R x x 2