You are Here: Home >< Maths

# How do people fail to answer even ONE question on a BMO1 paper? Watch

1. Yes I completely agree
Don't forget binomial expansion lol otherwise it will take a long time to expand
yh the arithmetic is ghastly so people really would have to check quite a few times over.
2. (Original post by MathMeister)
Yes I completely agree
Don't forget binomial expansion lol otherwise it will take a long time to expand
yh the arithmetic is ghastly so people really would have to check quite a few times over.
Spoiler:
Show
Isn't it just 2007(2008) + 1 = (2000+7)(2000+8) + 1 = 4000000 + 30000 + 56 + 1 = 4030057
3. (Original post by Mathbomb)
Spoiler:
Show
Isn't it just 2007(2008) + 1 = (2000+7)(2000+8) + 1 = 4000000 + 30000 + 56 + 1 = 4030057
Let n=2007 or somethig. Works out mch easier.

Posted from TSR Mobile
4. (Original post by physicsmaths)
Let n=2007 or somethig. Works out mch easier.
Posted from TSR Mobile
That's what I did.
It strangely turns out the quotient is the same as the thing your dividing by.
They do like to make lovely questions
it's quite hard to see this with the numbers
In fact the 0.5*(denominator)^2=numerator
so 2*numerator= denominator^2
5. (Original post by physicsmaths)
You got q3 wrong, don't embarrass yourself and close this. The answer is n=11.

Posted from TSR Mobile
Its 21 lol wtf troll.

1+2+3 = 6
Therefore you cannot ever let 1, 2, 3 and 6 ever be in the same group together.

Now, consider the smallest integer in a potential group for a + b + c = d
The smallest integer that is REQUIRED 100% needed to make a group is 1 for values of n between 6 and 8, 2 for 9 to 11 (2+3+4=9), 3 for 12 to 14, 4 for 15 to 17, 5 for 18 to 20, and you can make a set of 21 with 6+7+8.
For 11 (an all n<21) all you have to do is split one group up so that it has the numbers 1-5 and the other group has no chance of making a set.
6. lmfao 11 is the answer that's bullsh*t
For 11 (an all n<21) all you have to do is split one group up so that it has the numbers 1-5 and the other group has no chance of making a set.[/B]
1+1+1=3
8. (Original post by james22)
1+1+1=3
yeah but you used 1 three times. You need to use 2 and 3 as your next smallest numbers.
yeah but you used 1 three times. You need to use 2 and 3 as your next smallest numbers.
10. (Original post by james22)
no u
no u
Let x=y=z=1 and ;et w=3, what is wrong with this? Nothings says they have to be distinct (it actually clarifies that they don't).
12. (Original post by james22)
Let x=y=z=1 and ;et w=3, what is wrong with this? Nothings says they have to be distinct (it actually clarifies that they don't).
it said x y z not any combination of x x and x or z y y
it said x y z not any combination of x x and x or z y y
It clearly says they don't need to be distinct.
14. (Original post by james22)
I clearly said they don't need to be distinct.
ftfy
just cuz u said it doesnt mean the question said it
ftfy
just cuz u said it doesnt mean the question said it
Determine the least natural number
n
for which the following
result holds:
No matter how the elements of the set
{
1
,
2
, . . . , n
}
are coloured red
or blue, there are integers
x, y, z, w
in the set (not necessarily distinct)
of the same colour such that
x
+
y
+
z
=
w

16. (Original post by james22)
Determine the least natural number
n
for which the following
result holds:
No matter how the elements of the set
{
1
,
2
, . . . , n
}
are coloured red
or blue, there are integers
x, y, z, w
in the set (not necessarily distinct)
of the same colour such that
x
+
y
+
z
=
w

lol making stuff up and adding it to the question k.
17. (Original post by physicsmaths)
Let n=2007 or somethig. Works out mch easier.

Posted from TSR Mobile
??? That is the answer once you are left with the arithmetic. To get to that I used that method though :P
lol making stuff up and adding it to the question k.
i made an account just to downvote you
where's the downvote button
19. just read through the posts. You guys got baited by OP; I think the trolls win this one.
20. (Original post by james22)
...
I struggle to understand the question lol
what have colours got to do with it?
plz explain

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: January 26, 2015
Today on TSR

### Best unis for graduate salaries

Half of the top 10 aren't even RG...

### My alarm went off in an exam!

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE