Paper 42 (13th May) - Full Solutions

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    Votes: 169 26.9%
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    Votes: 268 42.7%

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24 hours have passed so here are full solutions to the 13th May IGCSE Maths Paper 42. These are my (IGCSE maths teacher) solutions and not the official solutions from CIE.

I’ll try to answer any questions regarding this paper but...

Since I don’t want to make any predictions that could be wrong, I will not answer any questions like, 'What will I need to get this grade?' or 'How hard/easy was the paper, what will the A boundary be?'.

I’ll only say that I thought it was a very hard paper, one of the hardest in recent years.

Here are the average total grade boundaries over the last 2 years:

A* : 174.7/200
A : 145.6/200
B : 114.8/200
C : 84.4/200

You can see my solutions to Paper 22 here.
 

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527
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Using algebra, here are the real answers to Q3 (5sf)

c) 1.3139, 4.1861
di) (2.6458, 3.1032)
dii) 0.41699

There will be a range of answers allowed but I don’t know what those ranges will be.
 
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bunch of doubts
how many marks would i lose for finding the minor segment?
In 10aii i wrote 3x+9 on the bottom, will i still get full for that?
for 11c do i get marks for 100/27?
and last one do i inly lose 1 for 19?
 
Messages
527
Reaction score
189
Points
53
bunch of doubts
how many marks would i lose for finding the minor segment?
In 10aii i wrote 3x+9 on the bottom, will i still get full for that?
for 11c do i get marks for 100/27?
and last one do i inly lose 1 for 19?
For finding the minor arc you'll probably lose at least 2 maybe all 3.

10ii. Full marks
11c. Full marks

For writing 19 you'll only lose 1 mark.
 
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24 hours have passed so here are full solutions to the 13th May IGCSE Maths Paper 42. These are my (IGCSE maths teacher) solutions and not the official solutions from CIE.

I’ll try to answer any questions regarding this paper but...

Since I don’t want to make any predictions that could be wrong, I will not answer any questions like, 'What will I need to get this grade?' or 'How hard/easy was the paper, what will the A boundary be?'.

I’ll only say that I thought it was a very hard paper, one of the hardest in recent years.

Here are the average total grade boundaries over the last 2 years:

A* : 174.7/200
A : 145.6/200
B : 114.8/200
C : 84.4/200

You can see my solutions to Paper 22 here.
i wrote for translation as "translation (5 -8) will i loose both marks or just one
 
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