Answers to General Maths Exam (1 Viewer)

PC

Member
2008 GENERAL MATHS HSC EXAM

SECTION I
1. A
2. C
3. A
4. D
5. B
6. B
7. D
8. C
9. A
10. D
11. B
12. A
13. C
14. B
15. B
16. D
17. A
18. A
19. B
20. D
21. B
22. C

SECTION II
QUESTION 23
(a) (i) Feb, Mar, Nov or Dec
(ii) Nov
(b) 0.4%
(c) (i) 20.625 mL
(ii) 3.9 mL/min
(d) x = 5
(e) 175 people
(f) 76%

QUESTION 24
(a) (i) \$24445.20
(ii) Method 2
(b) (i) 60
(ii) 3/5
(iii) 24
(iv) 1/15
(c) \$335 138.91

QUESTION 25
(a) (i) a = 6
(ii) 8 years
(b) (i) Probabilities on 2nd stage: 11/29, 18/28, 12/29, 17/29
(ii) 73/145
(c) (i) 41.04 cm x 21 cm x 15 cm
(ii) 506 cubic centimetres

QUESTION 26
(a) (i) 68
(ii) 6/25
(iii) Movie will not be a success as only 58% of critics liked the movie.
(b) (i) 7/400
(ii) Negatively skewed, clustered around ages 61-75
(c) Lose \$22.50
(d) (i) 600 000
(ii) 35-39
(iii) 1 450 000
(iv) My first answer was: Those 75-79 would have been born during the Great Depression in the early 1930s.
A better answer is 80+ can include ages from 80 to 100 or more, so there will be more people in that range.

QUESTION 27
(a) (i) 8377 km (or 8334 km)
(ii) 9 hours
(iii) 12 pm Wednesday
(b) (ii) \$784321.20
(iii) She will take 252 months, or 21 years, so will not be able to pay loan off in 20 years.
(c) \$2800

QUESTION 28
(a) (i) 1
(ii) (1) 155 cm (2) 84%
(iii) 163 cm
(iv) 55.8 kg
(v) (1) Height increases by 6 cm per year (2) Around age 12, girls start "growth spurt".
(b) (i) A = h/3[8a + 2b] = 2h/3[4a + b]
(ii) Decreases by 8 m

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henry08

Active Member
Can you post the questions up as well please.

taker0

Member
(iv) Those 75-79 would have been born during the Great Depression in the early 1930s.

wtf is this maths?? are they allwed to ask this lol. i said something about baby booming lol

Roy9

Member
I think for question 28, v, 2, the answer was that they stop growing rapidly after age 12..... because the graph's line was beginning to plateau at that age and it's not like they're gonna continue growing 6cm a year for the rest of their life

cait33

Doctor's Companion
taker0 said:
(iv) Those 75-79 would have been born during the Great Depression in the early 1930s.

wtf is this maths?? are they allwed to ask this lol. i said something about baby booming lol
yeah i know!!!
but they would be at least 80 now gah!

New Member
taker0 said:
(iv) Those 75-79 would have been born during the Great Depression in the early 1930s.

wtf is this maths?? are they allwed to ask this lol. i said something about baby booming lol
i put that there is a bigger range for 80+ then 75-79 therefore more people

olivegreentiger

Member
Roy9 said:
I think for question 28, v, 2, the answer was that they stop growing rapidly after age 12..... because the graph's line was beginning to plateau at that age and it's not like they're gonna continue growing 6cm a year for the rest of their life
agreed..

8th1da

New Member
i put that there is a bigger range for 80+ then 75-79 therefore more people
yah same.

As for question 27 (a) part i wouldnt the flight take 9 hours. as 8334/913 = 9 ??

New Member
8th1da said:
yah same.

As for question 27 (a) part i wouldnt the flight take 9 hours. as 8334/913 = 9 ??

mermer

Member
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sersiously..i thought i failed that bitch of an exam but i checked what i wrote on me exam paper with what u wrote for answer (i wrote my answers on the booklet which we took home) and i calculated pretty much a rough 85....i'm feeling much calmer now sucks bout the last last question on the paper...it took me 15 minutes and in the end i wrote increas B by 8...argh! but i'm shocked that i got the rest of 28 right...that was a bloody hard section

grkforlyf

New Member
would 27 a) iii) be 12am wednesday?

got 9 hours for plane and 5 hours for time difference : 75x4=300 =5 hours?

Roy9

Member
grkforlyf said:
would 27 a) iii) be 12am wednesday?

got 9 hours for plane and 5 hours for time difference : 75x4=300 =5 hours?
Yep.

PC

Member
8th1da said:
yah same.

As for question 27 (a) part i wouldnt the flight take 9 hours. as 8334/913 = 9 ??

You're right. I'm so used to having the speed in knots, so I used nautical miles instead of km.

New Member
grkforlyf said:
would 27 a) iii) be 12am wednesday?

got 9 hours for plane and 5 hours for time difference : 75x4=300 =5 hours?
yeh i got that, do u mean 12 day time?

8th1da

New Member
and for question 23 (C) i if u have 3.9 ml a min
3.9*60 = 234ML of alco in an hour thats way over

.

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8th1da

New Member
yeh i got that, do u mean 12 day time?
yeh i got 12 pm (midday)

grkforlyf

New Member
fuck i put am instead of pm

another mark gone

PC

Member
8th1da said:
and for question 23 (C) i if u have 3.9 ml a min
3.9*60 = 234ML of alco in an hour thats way over
I don't think (ii) is asking for the amount of alcohol per minute, but just the amount of "drink" per minute.

Rate = 375 mL/1.6 drinks
= 234.375 mL/1 drink
= 234.375 mL/1 hour (1 drink per hour)
= 3.90625 mL/min