Edexcel IGCSE Mathematics A - Paper 3H - 2016 - Unofficial Mark Scheme

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Reply 220

ZoeN2

Original post by WhiteX

when the mark scheme will be available ?

I don't know but hopefully soon!

Reply 221

FyreSix

Original post by cornflakeexpert

80%o for a* is so high though surely???

I agree, it was a slightly unfair paper due to the amount of 5/6 markers - it may be lower but I don't believe it will be too much lower. I'm predicting it'll be about 78-80.

Reply 222

Spinal tap

Original post by Lewis.I

Me being me,
I put -3x+4y=-19 which is still right but hoping for the oe to be on the mark scheme!

Same here mate. Pretty sure that'll be full marks, would be super harsh if that wasnt on the mark scheme

Reply 223

cornflakeexpert

Original post by izak

thats how they filter the best from the rest though

i am the rest

Reply 224

fuzz13

Grade boundaries anyone? So wanted an A but messed up all the questions with 4/5/6 marks :banghead:

Reply 225

woozert

Original post by WhiteX

it was 5 mark i divided it to 3 triangles i did the first one and i didnt do the others so i might get 1 mark of 0

aa thank u!!good luck

Reply 226

jonny2402

nah sorry mate if it's only a 1 mark question then you can only get 1 or 0 marks but if it's put of 2 or more, you certainly will get marks for working

Reply 227

WhiteX

Original post by Spinal tap

Same here mate. Pretty sure that'll be full marks, would be super harsh if that wasnt on the mark scheme

what about if i only wrote y=3/4x-4.5 with corret working out but i didnt re arrange it and times it by 4

how many mark will i get out 4 or 5 i dont remember the total

Reply 228

Spinal tap

How many marks was question about spheres???

Reply 229

Spinal tap

Original post by WhiteX

what about if i only wrote y=3/4x-4.5 with corret working out but i didnt re arrange it and times it by 4

how many mark will i get out 4 or 5 i dont remember the total

that would be -1 or 2 at most because you got the base equation right

Reply 230

WhiteX

Original post by jonny2402

nah sorry mate if it's only a 1 mark question then you can only get 1 or 0 marks but if it's put of 2 or more, you certainly will get marks for working

it was 6 mark q not 5 so if you did the area of firt triangle you should get 2 i think

Reply 231

WhiteX

Original post by Spinal tap

that would be -1 or 2 at most because you got the base equation right

ok was this q 5 or 4 mark ?

Reply 232

WhiteX

Original post by Spinal tap

that would be -1 or 2 at most because you got the base equation right

ok was this q 5 or 4 mark ?

Reply 233

Spinal tap

Original post by WhiteX

ok was this q 5 or 4 mark ?

4 marks I think

Reply 234

WhiteX

Original post by Spinal tap

How many marks was question about spheres???

5 marks

Reply 235

Abodee1

Guys what was question 10? im afraid i missed it because i dont remember any answer of 10.7...

Reply 236

maths1409

Original post by IGCSETANK

You were given 4.5cm which you have to convert to MM via the multiplication of 10, giving you 45cm.
The upper bound value of 45 is 45.5, hence you have 45.5MM
Divide this by your MM value, which was 3. This needs to be a lower bound to produce a maximum value and so you should divide by 2.5MM ( question stated 3MM to nearest MILIMETRE).
This would have given you 18

Thats wrong, finding the upper bound and lower bound is correct but you do not just divide 45.5 by 2.5... that wouldn't be a question 20 more like a question 5. You have to find the upper bound volume of the cube and then divide that by the lower bound volume of the sphere. which is 45.5 cubed divided by 4 over 3 pi 2.5 cubed. which gives you 1439 rounded to the nearest whole number.