(Original post by sreddy17)
Hi guys, I will do an unofficial mark scheme from what I can remember:
1.) draw network, then it was length 8 and a,c,e,g or something can't remember exactly but it had 4 arcs.
2.) relatively straightforward.
- application something to do with differentiation
-root 5 why is it included... not sure.
3.) For this graph theory question I can't remember exactly what I had but for part 2, i had one circle with a circle in it. and i had a little circle just touching the big circle.
4.)X = number of motors of type X made
inequalities: there was one with x>5 and y>5 (greater than or equal to)
and 2 more i cant remember...
the max profit was where the two lines intersected.
for the last part the inequality changed and u just had to plot and give integer values.
5.) probably the hardest question, but bcoz it said 9 bags... u had to reject 9, and assign 0-7 to doubles and 8 to single.
and i got 0.6 as final probability for last question.. i added all my probs up i had 4 (4/6) and one 2/6
6.) 14 minutes was min time, after you draw the network.. and critical activities i can't remember
1 dummy used
took 2 ppl to do it in min time
min time for one just add them all up 5.5 i think( excluding the 10 one h) or 15.5 if u add h on, question didn't really make it that clear.
and then u had to draw a critical network showing the 5.5 then the 10 then he 5.5 again and 10 three times...
CANT REMEMBER MUCH ELSE