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AQA D1 2017 unofficial Markscheme

This is the unofficial Mark scheme of the D1 paper..i may need some help :smile:

1) pairings... each one should be matched to the other
b) 2 people cannot be matched to 1 position

help me by commenting the answers below... i forgot

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Reply 1

michaelxmichael1

for the programming Q i got 4600£ for the price i believe

Reply 2

Rubygentry

For the prims question the mst total was 117

Reply 3

bethanyjx

Original post by michaelxmichael1

for the programming Q i got 4600£ for the price i believe

Answer is £4200

Reply 4

ninjaspaz12

same here i got $4200

Reply 5

tika8

anyone get x=120 y=60 and z=45 for the linear programming individual values of the chairs?

Reply 6

bethanyjx

Original post by tika8

anyone get x=120 y=60 and z=45 for the linear programming individual values of the chairs?

Yes!!!

Reply 7

ma77tyLG9

67 and 68 for Dijkstra's

130 for Chinese Postman

50, 48 and 40 for the Travelling salesman questions

(edited 6 years ago)

Reply 8

Matamatically

I got 40 for the lower bound?

Reply 9

ma77tyLG9

Original post by Calg_

I got 40 for the lower bound?

Sorry you're right, it was 40

Reply 10

Pidge Gunderson

0.2857 for algorithm question
6 comparisons for shuttle sort

Reply 11

imundercover

shortest hamiltonian cycle was 26 i think

Reply 12

ma77tyLG9

Original post by Kyou

0.2857 for algorithm question
6 comparisons for shuttle sort

Applied maths modules ask for three significant figures so it would have been 0.289

Reply 13

imundercover

Original post by ma77tyLG9

Applied maths modules ask for three significant figures so it would have been 0.289

question asked for all values to 4 decimal places

Reply 14

ninjaspaz12

Original post by ma77tyLG9

Applied maths modules ask for three significant figures so it would have been 0.289

"unless specified otherwise"
the question stated 4 decimal places

Reply 15

Ameenk95

Original post by imundercover

question asked for all values to 4 decimal places

Chances are marks will still be scored.

Reply 16

imundercover

is there a completed unofficial mark scheme for this yet??

(edited 6 years ago)

Reply 17

CharlieFosterr

Original post by michaelxmichael1

for the programming Q i got 4600£ for the price i believe

Was that for the minimum??? The question definitely said minimum and i got £1900 or something ending in 900 so now i am worried i drew the whole thing wrong