Product rule for counting

Mark scheme and answers · Total marks: 50

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Question 1 [1 mark]

1757600

Mark scheme
  • A [1] — cao 1757600

Accept algebraically equivalent correct forms.

Question 2 [1 mark]

540

Mark scheme
  • A [1] — cao 540

Accept algebraically equivalent correct forms.

Question 3 [1 mark]

20

Mark scheme
  • A [1] — cao 20

Accept algebraically equivalent correct forms.

Question 4 [1 mark]

6

Mark scheme
  • A [1] — cao 6

Accept algebraically equivalent correct forms.

Question 5 [1 mark]

6

Mark scheme
  • A [1] — cao 6

Accept algebraically equivalent correct forms.

Question 6 [1 mark]

20

Mark scheme
  • A [1] — cao 20

Accept algebraically equivalent correct forms.

Question 7 [1 mark]

12

Mark scheme
  • A [1] — cao 12

Accept algebraically equivalent correct forms.

Question 8 [1 mark]

12

Mark scheme
  • A [1] — cao 12

Accept algebraically equivalent correct forms.

Question 9 [1 mark]

160

Mark scheme
  • A [1] — cao 160

Accept algebraically equivalent correct forms.

Question 10 [1 mark]

17576000

Mark scheme
  • A [1] — cao 17576000

Accept algebraically equivalent correct forms.

Question 11 [2 marks]

35

Mark scheme
  • A [2] — cao 35

Accept algebraically equivalent correct forms.

Question 12 [2 marks]

358800

Mark scheme
  • A [2] — cao 358800

Accept algebraically equivalent correct forms.

Question 13 [2 marks]

180

Mark scheme
  • A [2] — cao 180

Accept algebraically equivalent correct forms.

Question 14 [2 marks]

258336000

Mark scheme
  • A [2] — cao 258336000

Accept algebraically equivalent correct forms.

Question 15 [2 marks]

121670000

Mark scheme
  • A [2] — cao 121670000

Accept algebraically equivalent correct forms.

Question 16 [2 marks]

260

Mark scheme
  • A [2] — cao 260

Accept algebraically equivalent correct forms.

Question 17 [2 marks]

60

Mark scheme
  • A [2] — cao 60

Accept algebraically equivalent correct forms.

Question 18 [2 marks]

6

Mark scheme
  • A [2] — cao 6

Accept algebraically equivalent correct forms.

Question 19 [2 marks]

30

Mark scheme
  • A [2] — cao 30

Accept algebraically equivalent correct forms.

Question 20 [2 marks]

24

Mark scheme
  • A [2] — cao 24

Accept algebraically equivalent correct forms.

Question 21 [2 marks]

45

Mark scheme
  • A [2] — cao 45

Accept algebraically equivalent correct forms.

Question 22 [2 marks]

74

Mark scheme
  • A [2] — cao 74

Accept algebraically equivalent correct forms.

Question 23 [2 marks]

3088800000

Mark scheme
  • A [2] — cao 3088800000

Accept algebraically equivalent correct forms.

Question 24 [2 marks]

10000

Mark scheme
  • A [2] — cao 10000

Accept algebraically equivalent correct forms.

Question 25 [2 marks]

676000

Mark scheme
  • A [2] — cao 676000

Accept algebraically equivalent correct forms.

Question 26 [2 marks]

20

Mark scheme
  • A [2] — cao 20

Accept algebraically equivalent correct forms.

Question 27 [2 marks]

42592000

Mark scheme
  • A [2] — cao 42592000

Accept algebraically equivalent correct forms.

Question 28 [2 marks]

40

Mark scheme
  • A [2] — cao 40

Accept algebraically equivalent correct forms.

Question 29 [2 marks]

64

Mark scheme
  • A [2] — cao 64

Accept algebraically equivalent correct forms.

Question 30 [2 marks]

30

Mark scheme
  • A [2] — cao 30

Accept algebraically equivalent correct forms.