Math 4024 Paper 1

[ibadsiddiqi]

Basic Arithmetic, angles and circle properties, stats, congruency and similarity, loci, trigonometry and transformations. These are the basic topics that come every year

 

[no.mercy]

yeah stats comes too regarding a cumulative frequency graph..in which we have to calculate median,mode,inter quartile etc.

 

[amazon]

to how many significant fig do we have to write the answers in?? :%)

 

[ibadsiddiqi]

it is ususally given in thr question but you usually have to give it to 3 significant numbers. anyone correct me if i am wrong please.

 

[abcde]

to how many significant fig do we have to write the answers in?? :%)

For paper 1, the answers you will obtain will be exact and you just need to quote that exact value in the answer space. For paper 2, non-exact numerical answers must be rounded of to 3 significant figures e.g. 0.0395 m^3, angles obtained from trigonometry have to be expressed up to 1 decimal place e.g. 125.7* and money answers are to expressed to two decimal places e.g. $65.35.

 

[amazon]

Thanks guys one more thing please- do we have to write the answer in decimals, fractions or what. How do we know which form is the best way to write the answer? :unknown:

 

[HamzaAsghar]

Hey can someone plz help me with the last question i.e Q24

http://www.xtremepapers.me/CIE/Cambridg ... 2_qp_1.pdf

 

[abcde]

Thanks guys one more thing please- do we have to write the answer in decimals, fractions or what. How do we know which form is the best way to write the answer? :unknown:

Unless the question mentions which form you have to write your answers in, you can write in any form!

 

[no.mercy]

you should write the answers in fraction coz you will face difficulty in the sig figures if you will write in decimals

 

[ibadsiddiqi]

It depends on u. I like answering in decimals.

 

[abcde]

Hey can someone plz help me with the last question i.e Q24

http://www.xtremepapers.me/CIE/Cambridg ... 2_qp_1.pdf

AoA!
Q24) (a) (i) Observe that the pyramid has a triangular base.
=> Base area = (1/2 x 5 x 5) = 12.5 cm^2.
=> Volume of pyramid = 1/3 x 12.5 x 5 = 20, 5/6 am^3 (as in 20 whole 5/6).

(b) Volume of prism = base area x height
= (1/2 x 5 x 5) x 10
= 125 cm^3.
Volume of cube= 10^3 =1000 cm^3.
Therefore, the remaining volume = (1000- 125) = 875 cm ^3.

 

[abcde]

Here's (a) (ii)

 

[HamzaAsghar]

Thanks a lot man

 

[abcde]

Welcome, sahab!

 

[no.mercy]

Yar can u pls tell me how to do question Q21 of this paper http://www.xtremepapers.me/CIE/Cambridg ... 4_qp_1.pdf

 

[no.mercy]

and also this Q 24 in http://www.xtremepapers.me/CIE/Cambridg ... 4_qp_1.pdf

 

[ibadsiddiqi]

for question 21 part a) i) you can see by looking at the equation that the gradient is 2
ii) You find the point of intersection of the line and the curve for which the x coordinate is more than zero which in this case is 2.6 or 2.7

b) compare y=ka^x with y=2^x.
for part i) you need to find k and so you need to remove a so you substitute the cordinates in which the value of x is zero. i.e (0,0.5). so 0.5=ka^0. hence k=0.5.
ii) you have k so you take any other coordinates which lie on the curve and substitute them in the equation to get the value of a. eg (1,1.5). so 1.5=0.5a^1. Hence the value of a is 3.

I know i am not good at explaining but i hoped this helped

 

[ibadsiddiqi]

for Q 24
You need to draw a diagram from the given information which wont be a problem. From the diagram, tan30=height/50.
so using the info given, 0.577=h/50, so h=28.85. therefore the height of the tree will be 1.8+28.85=30.65.
is the answer correct??

 

[ibadsiddiqi]

paper 1 was BEAUTIFUL!!! Hope everyone gets an A*..!

 

[no.mercy]

inshAllah