VCE General & Further Maths Question Thread!

[Legemeton]

No worries.

A critical path is usually the longest path because you can't complete the project without completing the longer duration activities first. But this isn't a typical critical path problem.

"when going B-D you would still have to do C" - that's why you do C right after completing B and D? If you do that you'll realise that all activities are able to be completed in 33 minutes hence it's the critical path (in this circumstance where C and D can't be completed at the same time).

It doesn't specify if you go with C or D first because you have to figure out which one will have the least impact on the minimum completion time. If you go with C first as you suggest, then the path would be A-C-D-F-H-I which is 5+8+9+6+3+4=35. Which is obviously more than 33.

cheers lad much thanks

[jazzaa36]

Alright I was at Tudor and my Tudor was talking about how someone forgot to shade in what module they were doing and they got zero that section . I JUST REALISED I TICKED THE BOX INSTEAD OF SHADING ( the area where it has 4 boxes and u choose your module) but I did write down what module it was in the box and it was ticked. Will I be penalised or am I just overreacting  

[EdwinJS]

Can someone help me with this pls?

Not entirely sure if i'm on the ball but here goes:

Bank 1: $3585.04 per month for 20 years = $3585.04*240
= Total Payed = $860409.60
Total Payed - $500,000 = Interest Paid
Interest Paid = $360,409.60

Bank 2: $3585.04 per month for first 10 years = $3585.04*120
= total payed in 10 years = $430204.60 and keeping that in mind.

Using financial Solver:
N:120 (10 years)
I: 5%
PV: $500,000
PmT: $3585.04
FV: $266,811.57 Found because all other values are given to us. (Our new Present value after the 10 year mark)
PpY: 12
CpY: 12

Now with $266,811.57 left to pay for the remaining 10 years the financial solver is updated as follows:
N:120 (10 years)
I: 7%
PV: $266,811.57
PmT: $2409.34
FV: 0
PpY: 52
CpY: 52

Now as we already payed $430204.60 in the first 10 years, we now pay $2409.34 per month for the last 10 years, so:
$430204.60 + $2409.34 * 120 = Total Payed in 20 years
Total Payed in 20 years = $719.325.60
Total Payed - $500,000 = Interest Paid
Interest Paid = $219,325.60

Now using both banks' Interest Paid amounts:
Bank A (Interest paid): $360,409.60
Bank B (Interest paid): $219,325.60

Therefore, Bank B will incur the lower interest amount and is the recommended bank for Shannon 

Also, if this question was just one mark, could we not just assume it is Bank B because shorter the compound, lesser the interest and duration of loan...

Either way correct me if I'm wrong guys. xx

[EdwinJS]

Alright I was at Tudor and my Tudor was talking about how someone forgot to shade in what module they were doing and they got zero that section . I JUST REALISED I TICKED THE BOX INSTEAD OF SHADING ( the area where it has 4 boxes and u choose your module) but I did write down what module it was in the box and it was ticked. Will I be penalised or am I just overreacting  

Multiple Choice is all computerised so if it does not pickup that you shaded in the box it will give it an error and not sure what happens next - maybe goes into a pile with others that manually need to be checked with the written module and marked that way, I'm not too sure  .

[jazzaa36]

Multiple Choice is all computerised so if it does not pickup that you shaded in the box it will give it an error and not sure what happens next - maybe goes into a pile with others that manually need to be checked with the written module and marked that way, I'm not too sure  .

Fkk shitting bricks now 

[Cornrow Kenny]

Fkk shitting bricks now 

Speak to your VCE co-ordinator or equivalent at your school, the earlier the better. I'm sure you'll be fine.

[Kimahso]

Can someone help me with this pls?

I got the same answer as EdwinJS (Bank B charges less interest) but I got a different amount for Bank B.

Got the same amount of interest of $360409.60 for Bank A.

For Bank B enter:
N:120 (10 years)
I: 5%
PV: -$500,000
PmT: $3585.04
FV: $266,811.57
PpY: 12
CpY: 12

I think EdwinJS is wrong in thinking that the loan payment changes or that it has to continue for another 10 years because it doesn't say that anywhere (in the brackets it says which loan will incur the least interest and time) Enter:

N: 78.47
I: 7%
PV: -$266,811.57
PmT: $3585.04
FV: 0
PpY: 52
CpY: 52

Add 78.47+120 to get total loan amount of 198.47 months. 198.47*3585.04 = $711537 total repayments for Bank B loan. 711537-500000 = $211537 interest incurred on Bank B loan.

So Bank A's loan incurs $360409.06 interest in 240 months. And Bank B's loan incurs $211537 interest in about 199 months.

[masch]

Alright I was at Tudor and my Tudor was talking about how someone forgot to shade in what module they were doing and they got zero that section . I JUST REALISED I TICKED THE BOX INSTEAD OF SHADING ( the area where it has 4 boxes and u choose your module) but I did write down what module it was in the box and it was ticked. Will I be penalised or am I just overreacting  

My teacher told me that if the computer doesn't pick it up then it will be checked manually. The tick should be enough ...so just chill. It's all good 

[masch]

I got the same answer as EdwinJS (Bank B charges less interest) but I got a different amount for Bank B.

Got the same amount of interest of $360409.60 for Bank A.

For Bank B enter:
N:120 (10 years)
I: 5%
PV: -$500,000
PmT: $3585.04
FV: $266,811.57
PpY: 12
CpY: 12

I think EdwinJS is wrong in thinking that the loan payment changes or that it has to continue for another 10 years because it doesn't say that anywhere (in the brackets it says which loan will incur the least interest and time) Enter:

N: 78.47
I: 7%
PV: -$266,811.57
PmT: $3585.04
FV: 0
PpY: 52
CpY: 52

Add 78.47+120 to get total loan amount of 198.47 months. 198.47*3585.04 = $711537 total repayments for Bank B loan. 711537-500000 = $211537 interest incurred on Bank B loan.

So Bank A's loan incurs $360409.06 interest in 240 months. And Bank B's loan incurs $211537 interest in about 199 months.

I agree that you can't assume that the loan goes for another 10 years once the rate changes to 7% but I don't think you can assume that the payment will be 3585.04 per week. Is this guy loaded with money?...That's about $14000 payment per month. I'm not sure if this is realistic???

[Kimahso]

I agree that you can't assume that the loan goes for another 10 years once the rate changes to 7% but I don't think you can assume that the payment will be 3585.04 per week. Is this guy loaded with money?...That's about $14000 payment per month. I'm not sure if this is realistic???

lol you're right. Instead of setting both the Ppy and Cpy to 52 just change Cpy to 52 and keep Ppy as 12 and you'll pay off the rest in 97.97 months. Then 97.97+120 = 217.974 months of repayments. Then 217.974*3585.04 = $781444 total repayments. Interest is 781444-500000 = $281444, which ends up taking less time and incurring less interest than Bank A's option.

Although I've never seen a question where you had to set the Cpy and Ppy to different values, I doubt they'll test this concept in the exam.

[ayesha2011t]

Can someone help me with this pls?

Thanks for the help guys!

The solutions provided -->

[Kimahso]

Thanks for the help guys!

The solutions provided -->(Image removed from quote.)

Wow such great solutions. 

Just hope that this type of question doesn't appear in the exam.

[melissaromeo]

Hi, can anyone link me to the answers of the sample exam 2 the short answer one thanks

[haxor4chan]

Heyyy, was just wondering how to do the last question on this about final payment??? (forget about my working out i think its wrong)

[Rosella]

Ive had a question in a MAV exam where its asking if the variable "age of graduates" (in years) is discrete or continuous. I thought it would be discrete as age in years can be counted, but the suggested answers say continuous. Whos right?