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GCSE Maths UNIT 2 AQA + UNOFFICIAL MARK SCHEME 2016

Hello everyone.
Hope the exam went well for you.
I'm 100000% confident the answers I got are correct, hence I'm making this Unofficial Mark scheme.

Q.1) Factorise and solve the equation for x and the answer is 8.

Q.2)There was a Nth term sequence going up by 2n each time.
On the diagram you were give n,2n,_,_
You had to work out the total value of the first 4 terms and The answer was 135.

Q.3)
a)Plotting for Train A
b)Plotting for Train B.
c)80mph was the speed of train B.

Q.4)
Car B was cheaper.

Q.5)
7 blue discs.

Question 6)
Factorise to get: 2x(3x+7)

Q.7)
You had to list all the values that satisfied The Inequality and they were:
-3,-2,-1,0,1

Q.7)
b)Draw a line to represent the Inequality of 2< x >=10
You should have put a solid dot at 10 and clear one at 2.

Q.8)
John and Nick share money in ratio 5:2. They have a difference of £150
Work out how much in total they get.
Answer was £350

Q.9)
a)Find Reciprocal of 0.2 and Answer is 5.
b)What is 8.5^0 and Answer is 1
c)Factorise 27^1/3 x 7^-2
Leave your answer in Fraction form.
Answer is 3/49

10) You had a graph and you had to state all the Inequalities for the shaded region.
They were:
x+y < 7 and x >= 2 y > 1

11) The question had something like this:

x-20 : x + 280 is meant to = 1/4 or something like that.

Basically you had to find a value for x that satisfied that and made it = 1/4.
Answer was 120.

12)a)Forgot

12)b)Forgot

Please remind me of these questions... I know there were a few to do on surds.




15)Simplify an expression and I'm not sure whether you had to leave it at 2x-1/2x+5 or -1/5 (CORRECT ME)

16)You had to find its identity something like that and
a=6
b=9

17)You had some Fractions and you had to turn it into a Quadratic then solve it, The answers were x=7 or x=-4


I've forgotten some of the questions. If you tell me them I shall remember the answers. Have any disagreements or thoughts? Leave a comment below.:biggrin:
(edited 7 years ago)

Scroll to see replies

Original post by Bulletzone
Hello everyone.
Hope the exam went well for you.
I'm 100000% confident the answers I got are correct, hence I'm making this Unofficial Mark scheme.

Question 1) Factorise and solve the equation for x and the answer is 8.

Question 2)There was a Nth term sequence going up by 2n each time.

On the diagram you were give n,2n,_,_

You had to work out the total value of 4 terms and The answer was 135.

Question 3)
a)Plotting for Train A
b)Plotting for Train B.
c)80mph

Question 4)
Car B was cheaper.

Question 5)
7 blue discs.

Question 6)
Factorise to get: 2x(3x+7)

Question 7)
You had to list all the values that satisfied The Inequality and they were:
-3,-2,-1,0,1

Question 7b)
Draw a line to represent the Inequality of 2 <x >=10
You should have put a solid dot at 10 and clear one at 2.

Question 8)
John and Nick share money in ratio 5:2. They have a difference of £150
Work out how much in total they get.
Answer was £350

Question 9a)
Find Reciprocal of 0.2 and Answer is 5.

Question 9b)
What is 8.5^0 and Answer is 1

9c)Factorise 27^1/3 x 7^-2
Leave your answer in Fraction for.
Answer is 3/49

10) You had a graph and you had to state all the Inequalities for the shaded region.
They were:
x+y <7 and y>1 and x >= 2

11) 120 (Forgot Question)
12)a)
12)b)

OMG I've forgot some questions. If you tell me them I shall remember the answers. Have any disagreements or thoughts? Leave a comment below.



I shall clean this up when I get home....


That was a solid paper... I've only got 25 so far :frown: (My A grade is out of the window for sure).

The last question was solving a quadratic equation from the algebraic fractions, which I can't remember. I messed this up and made the wrong quadratic.

There was a question where we had to simplify an algebraic fraction (I think it had 2x on both the denominator and numerator).

If I remember anything else, I'll tell you.
Reply 2
Avatar for Bulletzone
Bulletzone
OP
22
Original post by Jamie Vardy
That was a solid paper... I've only got 25 so far :frown: (My A grade is out of the window for sure).

The last question was solving a quadratic equation from the algebraic fractions, which I can't remember. I messed this up and made the wrong quadratic.

There was a question where we had to simplify an algebraic fraction (I think it had 2x on both the denominator and numerator).

If I remember anything else, I'll tell you.


I've updated it...I shall add more when I get home.

Posted from TSR Mobile
Reply 3
Avatar for Bulletzone
Bulletzone
OP
22
There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.
Original post by Bulletzone
There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.


3a - 5 = b
a + b = 64

Something to do with those. I ****ed up the simultaneous equation!
Reply 5
Avatar for Bulletzone
Bulletzone
OP
22
Original post by Jamie Vardy

3a - 5 = b
a +b = 64

Something to do with those. I ****ed up the simultaneous equation!


Hmm something is wrong with that. I think the second part is wrong....:hugs:
Original post by Jamie Vardy
3a - 5 = b
a + b = 64

Something to do with those. I ****ed up the simultaneous equation!


I didn't sit the paper (Just passing :tongue: ) but if it wanted you to solve the above for a and b....

a + (3a - 5) = 64
4a - 5 = 64
4a = 69

a = 17.25

b = 46.75
Reply 7
Avatar for Bulletzone
Bulletzone
OP
22
Original post by Lionheartat20
I didn't sit the paper (Just passing :tongue: ) but if it wanted you to solve the above for a and b....

a + (3a - 5) = 64
4a - 5 = 64
4a = 69

a = 17.25

b = 46.75



I know for a fact that the second part is not as Vardy stated.
Original post by Bulletzone
There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.


3a - 5 = b
a + b = 64

Something to do with those. I ****ed up the simultaneous equation!
Original post by Bulletzone
There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.


i believe it was
input -> x3 -> -5 -> output

when input is a, output is b
a+b= 64
Original post by slimehigh
i believe it was
input -> x3 -> -5 -> output

when input is a, output is b
a+b= 64


Can't believe I've forgotten how I worked out my answers, but I know I didn't get the same answers. Perhaps I went wrong? :redface:
(edited 7 years ago)
Original post by Bulletzone
Can't believe I've forgotten how I worked out my answers, but I know I didn't get the same answers. Perhaps I went wrong? :redface:


i think i made a mistake in my previous comment, i meant that if the input is a+b, the output is 64. i might be wrong but this is how i did it in the exam:

3a-5=b

3(a+b)-5=64
3(a+3a-5)-5=64
3a+9a-15-5=64
12a-20=64
12a=84
a=7

input 'a' into 3a-5=b :
7x3-5=b
21-5=b
b=16
Original post by slimehigh
i think i made a mistake in my previous comment, i meant that if the input is a+b, the output is 64. i might be wrong but this is how i did it in the exam:

3a-5=b

3(a+b)-5=64
3(a+3a-5)-5=64
3a+9a-15-5=64
12a-20=64
12a=84
a=7

input 'a' into 3a-5=b :
7x3-5=b
21-5=b
b=16


That sounds right, im sure 8
I did the same :smile:
Original post by slimehigh
i think i made a mistake in my previous comment, i meant that if the input is a+b, the output is 64. i might be wrong but this is how i did it in the exam:

3a-5=b

3(a+b)-5=64
3(a+3a-5)-5=64
3a+9a-15-5=64
12a-20=64
12a=84
a=7

input 'a' into 3a-5=b :
7x3-5=b
21-5=b
b=16


That's wrong (I think) though because the original statement said a + b = 64

You said a is 7 and b is 16 but 16 + 7 does not = 64....
"15)Simplify an expression and I'm not sure whether you had to leave it at 2x-1/2x+5 or -1/5"


2x-1/2x+5 does not equal -1/5 because you can't take 2x out of either top or bottom, it is not a factor.

2x-1/2x+5 is correct
Original post by Bulletzone
That's wrong (I think) though because the original statement said a + b = 64

You said a is 7 and b is 16 but 16 + 7 does not = 64....


oh, nevermind then :smile:
i thought the exam said that when the input is a+b the output is 64

16+7=23
23x3=69
69-5=64

but maybe i misread it lol
(edited 7 years ago)
Original post by slimehigh
oh, nevermind then :smile:
i thought the exam said that when the input is a+b the output is 64

16+7=23
23x3=69
69-5=64

but maybe i misread it lol


Looks like I've forgotten the answer and stuff to the question :frown: Does anyone remember what number it was?
How come barely anyone did this paper? Anyway, was it hard or easy?
Original post by Bulletzone
That's wrong (I think) though because the original statement said a + b = 64

You said a is 7 and b is 16 but 16 + 7 does not = 64....


Good point.

I am confident i got this question right but cant remember with accuracy my answer or the question.
I do remember something along the lines of 3(a+b)-5 but only vaguely.
Original post by bigoliver
Good point.

I am confident i got this question right but cant remember with accuracy my answer or the question.
I do remember something along the lines of 3(a+b)-5 but only vaguely.


Same here.

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