Maths, Addmaths and Statistics: Post your doubts here!

[Asad.Babur]

I didnt get ur question :/

Find the smallest value of K if
a) 280k is perfect square
b) 882k is cube

A= 70 (Undestood)
B= 84 (Howcome)?

 

[Dark Destination]

Find the smallest value of K if
a) 280k is perfect square
b) 882k is cube

A= 70 (Undestood)
B= 84 (Howcome)?

You have to convert 882 into its factors and compile them into the form of cubes. And then see what to multiply in order to make all of them cubes, or to the power of 3.

 

[Asad.Babur]

You have to convert 882 into its factors and compile them into the form of cubes. And then see what to multiply in order to make all of them cubes, or to the power of 3.

DO iT
I get

Prime Factors= 2x 3x 7^2

 

[Dark Destination]

DO iT
I get

Prime Factors= 2x 3x 7^2

Wrong prime factors. -.-

 

[Asad.Babur]

Wrong prime factors. -.-

What you get?

 

[Asad.Babur]

2x3^2x7^2

 

[Dream.Eater]

Yeah. xD
I don't get the concept of doing ALL the papers.
If someone has good concepts in maths, then doing the tough questions should be enough to perfect the concepts.
And the latest papers, for familiarity with the pattern.
If the tough questions cannot be done by someone, then they should start from the basic questions.

Okay, i'll try those years.

You dont have to do all the queations in those old papers. What i do is just browse through the paper and just do the tough looking ones( i found the circle theorem questions a bit hard)

 

[Dream.Eater]

You have to convert 882 into its factors and compile them into the form of cubes. And then see what to multiply in order to make all of them cubes, or to the power of 3.

Asad.Babur Dark Destination
I did the sum like this in an algebraical way. Dont kmow if its the proper method though........
First, using the factors find the LCM of 882 which is 2*3*7=42
Now, theoretically cube root of 882k = 42
Therefore 882k = 42*42*42
882k = 74088
k = 74088/882
k = 84
Hope this is understandable

 

[Dream.Eater]

You have to convert 882 into its factors and compile them into the form of cubes. And then see what to multiply in order to make all of them cubes, or to the power of 3.

How did you do this question?

 

[Awesome12]

Really?
A guy named ''Suhail Idrees'' got like 6 distinctions.
And he got a scholarship at Cambridge university.

Angrez waise bi pakistaniyo se sarte hai

 

[Asad.Babur]

Asad.Babur Dark Destination
I did the sum like this in an algebraical way. Dont kmow if its the proper method though........
First, using the factors find the LCM of 882 which is 2*3*7=42
Now, theoretically cube root of 882k = 42
Therefore 882k = 42*42*42
882k = 74088
k = 74088/882
k = 84
Hope this is understandable

Insane....

 

[Asad.Babur]

How did you do this question?

I try, nothing come up

 

[funky brat]

Dark Destination
Searching for tough question in all subjects,eh?
For maths, go through old papers 2003,2004....
You get some really tough questions in those

They are not tough. Even I can solve them.
The latest ones are the toughest particularly the O/N variants.

 

[Asad.Babur]

They are not tough. Even I can solve them.
The latest ones are the toughest particularly the O/N variants.

LOL!x Thats exactly what I said

 

[Dark Destination]

How to improve at maths? :/

 

[Asad.Babur]

How to improve at maths? :/

Try to do it

 

[Dark Destination]

Try to do it

Some people are maths-masters. I want to be one too.

 

[Asad.Babur]

How hard is (what fears me) Pythagoras Theorem is ?

 

[Asad.Babur]

Some people are maths-masters. I want to be one too.

Thanks for giving me the TITLE (I am credit stealer ) ..... Practise Practise and Practise....
Think before you solve Problems!

 

[Awesome12]

How to improve at maths? :/

Practice, Practice, Practice, and then learn from your mistakes