Paper 42 (13th May) - Full Solutions

[notnek01]

sir, in the matrix last question i wrote the values as decimal. will it be a problem?
and will i get the grade if i wrote "nx=27" instead of "n=27/x"?

No problem if you use decimals.

nx=27 for which question?

 

[Ozoman]

I cant believe how silly and outright stupid my mistakes were.... -.-

 

[mustafaata1]

Sir wat do u think will 152 be an A? Like most of people lost manyarks and they say it was hard

 

[Rania1]

the paper was really easy!

How much did you get for total?

 

[Rania1]

199/200

Wow are you serious? Thats amazing

 

[Ozoman]

how much???

I lost marks cuz i forgot to round....
and ALOT of marks cuz i didnt read the question properly.

 

[hatem.shakweer]

No problem if you use decimals.

nx=27 for which question?

question 5)a)

 

[Ratatat]

not really my mistake was very stupid...

Was it the 39*4 arc question? Nevertheless 199/200 is brilliant - I've made a couple stupid mistakes myself (like Q2 where I put (5 -8) instead of (-5 8) as a column vector, and in the fertiliser question where I added 4 instead of taking away 4.

There are some questions I don't remember my answers for, but if I count them all as being wrong, the worst mark I can get is 187/200 in total

 

[Abdullah Nisar]

For the question with the hexagon: the b part I forgot to change litres into cm3 and instead I carried on the working with 12 and not 12000, will I get marks for my working?

 

[Ratatat]

Another question, for the water flow question, how many marks would I get if I put 1744? (Instead of 1740)

 

[Yousef Khashaba]

Hey Sir...First of all you've done a very good job
I have some questions....
In Probability Q8-(b)(iii)
I calculated 1-(wearing both).... Is that right? The question didn't mention excluding "not wearing both hat and scarf"...
So i wrote 1-((5/8)*(2/3))= 7/12

Secondly....In Question 11(c)
I didn't understand what u did there... but i got the same answer (3.7) by using similar triangle with each other till I get OP5 at the end...
Can u explain to me what did u do exactly?
Thanks in Advance...

 

[Abdul Basit Arif]

Getting 171/200. Just because of 3.7 marks less I may not be getting an A*

 

[Amanasdf1]

how r we suppose to remember the questions?
and the paper was shit i messed up so bad

 

[Abdul Basit Arif]

Sir for the length of OP5 i wrote it as 3.67 will i getting any mark

 

[Mohammed salik]

Sir in Perimeter question, I calculate upper bounds and lowerbounds correctly And just added them once(didnt multiply by two )How Much will i loose??

 

[uzair shahid]

in question 3d) if we write the coordinates 2.6,3.1
will i get the marks?

 

[Amanasdf1]

Ill get the worst marks ever

 

[uzair shahid]

and in question 10a) if we write the denominator as 3x + 9
how many marks will be deducted?

 

[uzair shahid]

1 mark.. because they wanted simplest form!

shit!
i will get 124 out of 130
and in paper 2 will get 69 out of 70
i hope im right.
so did i get a world ranking? xD

 

[Ratatat]

shit!
i will get 124 out of 130
and in paper 2 will get 69 out of 70
i hope im right.
so did i get a world ranking? xD

You don't lose a mark for putting 3x + 9 (this question was raised earlier in the thread)