Maths, Addmaths and Statistics: Post your doubts here!

[kirann]

KIRAN post a question and tell us what problems you face

 

[kirann]

 

[kirann]

 

[Asad.Babur]

View attachment 41643

(a) Convert 2.4 hours to Mins

2.4 X 60 = 144

add 55 mins

199 mins now

Convert back in hours again

3 hours 19 mins

OR SECOND METHOD

Convert 55 to Decimals of Hours
55/60 = 0.92
Add 0.92 to 2.4
3.32 hours
Conver 0.32 to Mins :
0.32 * 60 = 19.2 min (or 19 mins)

So its 3 hours 19 mins

again

 

[Asad.Babur]

View attachment 41643

Divide tenth of kg in 2 = 0.05

add to 1.5 = 1.55

 

[Asad.Babur]

View attachment 41644

(i) Simplyfiy 22500: 37500
First Divide with 500
45:75
Then with 15
3:5 Ans

(ii)
Ada had 3600

Unitary:

The total pieces of INvestment is 8 (3+5) .... and 3600 is 3 piece

so 1 Piece = 1200
Thus, Billy have 1200*5=6000

Equation:

3/3600=5/X

So it!

(iii)

Ada invested 22500 in 2007

2008 Investment = 22500 * 112.5/100

Thus its, 25312.5

 

[Asad.Babur]

View attachment 41646 View attachment 41647

(i) Rashid Payed : 2395
Sayeeeeeed Payed : 595 + (12)171.04 = 2647.48

So he payed 252.48 more than Rashid

(ii) HAHAHA xD Simple Equation here .... let Monthly Payment be P

395 + (24)P = 3504.20

Solve it If you are not able to do ! then tell me!

(iii)
We are calculating how much 1595 is percentage of 2395

So 1595/2395 * 100 = 66.6 %

So discount is (100-66.6) = 34.4


If you need any further Explaination, tell me!

 

[Asad.Babur]

kirann
Here are some online links that are sooooo Usefull for Math Learnings You must try all: 101% Free, Interactive exercises to Video Lecture

www.khanacademy.org
www.ilovemaths.com
www.mathsisfun.com
www.aaamath.com

Some Paid :

www.ixl.com
www.mymaths.co.uk

Btw, dont try paid, I believe there is no need + If something is difficult to do on one source try another one.....

And after all that, you will need a scientific calculator

Please let me know what do you think

 

[kirann]

Divide tenth of kg in 2 = 0.05

add to 1.5 = 1.55

what do you mean by tenth of a kg?

 

[kirann]

(i) Simplyfiy 22500: 37500
First Divide with 500
45:75
Then with 15
3:5 Ans

(ii)
Ada had 3600

Unitary:

The total pieces of INvestment is 8 (3+5) .... and 3600 is 3 piece

so 1 Piece = 1200
Thus, Billy have 1200*5=6000

Equation:

3/3600=5/X

So it!

(iii)

Ada invested 22500 in 2007

2008 Investment = 22500 * 112.5/100

Thus its, 25312.5

112.55 or 12.5?

 

[kirann]

(i) Simplyfiy 22500: 37500
First Divide with 500
45:75
Then with 15
3:5 Ans

(ii)
Ada had 3600

Unitary:

The total pieces of INvestment is 8 (3+5) .... and 3600 is 3 piece

so 1 Piece = 1200
Thus, Billy have 1200*5=6000

Equation:

3/3600=5/X

So it!

(iii)

Ada invested 22500 in 2007

2008 Investment = 22500 * 112.5/100

Thus its, 25312.5

no i got everything thanks
yeah this is worth laughing cux im so dumb in maths

 

[kirann]

kirann
Here are some online links that are sooooo Usefull for Math Learnings You must try all: 101% Free, Interactive exercises to Video Lecture

www.khanacademy.org
www.ilovemaths.com
www.mathsisfun.com
www.aaamath.com

Some Paid :

www.ixl.com
www.mymaths.co.uk

Btw, dont try paid, I believe there is no need + If something is difficult to do on one source try another one.....

And after all that, you will need a scientific calculator

Please let me know what do you think

none of them have transformations

 

[Bhaijan]

Okay so guys, since cie does not show us the grade thresholds for getting an A in O level subjects, what should be the minimum a person should hope of scoring in order to get an A, in Paper 1 and Paper 2?

Kirann, you should read Mathematics Volume 1 and Mathematics Volume 2. At the end of each chapter, attempt some or all questions. This would help you prepare for the Paper thoroughly. I personally think, that the that endorsed books have not explained transformations correctly. Don't get me wrong, they have perfectly explained how to identify the transformations and describe them, but how to draw them in graph, or any working with matrices are not precisely explained. And so I would suggest trying to learn transformations from Book 4 (I think the singaporean version). So some of the material on transformations from book 4 and ALL from Volume 1 and 2.

After that, in order to ensure that you get an A or an A*, you should attempt all the past papers. Its very important that you do so.

 

[kirann]

Okay so guys, since cie does not show us the grade thresholds for getting an A in O level subjects, what should be the minimum a person should hope of scoring in order to get an A, in Paper 1 and Paper 2?

Kirann, you should read Mathematics Volume 1 and Mathematics Volume 2. At the end of each chapter, attempt some or all questions. This would help you prepare for the Paper thoroughly. I personally think, that the that endorsed books have not explained transformations correctly. Don't get me wrong, they have perfectly explained how to identify the transformations and describe them, but how to draw them in graph, or any working with matrices are not precisely explained. And so I would suggest trying to learn transformations from Book 4 (I think the singaporean version). So some of the material on transformations from book 4 and ALL from Volume 1 and 2.

After that, in order to ensure that you get an A or an A*, you should attempt all the past papers. Its very important that you do so.

yeah i solved yearly past papers i couldnt get more than 72/80 in p1 and in 70's in p2
i got B in my mocks...

 

[Asad.Babur]

what do you mean by tenth of a kg?

0.1

 

[Asad.Babur]

112.55 or 12.5?

Eiether, I used 112.5 because the new Percentage is 112.5% of old one!

 

[Asad.Babur]

no i got everything thanks
yeah this is worth laughing cux im so dumb in maths

ME IS SAME DUMB

 

[Asad.Babur]

none of them have transformations

 

[kirann]

ME IS SAME DUMB

*high-five*
well thanks i got everything

 

[Asad.Babur]

*high-five*
well thanks i got everything

Most welcome! Cause I believe that much you share, the double you get

Pray for my Papers, bTW