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Mega A Level Maths Thread MK II Watch

1. (Original post by Felix Felicis)

Ok, so a census-taker knocks on the door and asks the woman inside how many children she has and how old they are. The woman replies:
"I have 3 daughters. Their ages are whole numbers and the product of their ages is 36."
"That's not enough information." The census-taker replies.
"I'd tell you the sum of their ages but you'd still be stumpted." The woman replies.
"I wish you'd tell me something...more ." The census-taker replies, licking his lips.
"My oldest daughter, Abbie, likes dogs."
What are the ages of the daughters?

... I'll get back to you LOOL

(Original post by joostan)
A GP is a geometric progression, on a technicality I seem to recall that in the q it's actually a geometric series but hey ho.
OHH right, hmm may not be too bad then!
2. (Original post by tigerz)
The amount of times I start having laughing fits in the middle of class because I remember something Uh-Oh its Friday tomorrow, I know what you're gonna be thinking about in C2
finally met someone as weird as me haha, I actually used to randomly start laughing in maths, my teacher would always have have to say "and (my name) don't laugh" at the end of every sentence she said, that made it 10x more funny - completely normal behaviour we're exhibiting -
Hahaha I really hope I don't I probably will now that I've remembered it
3. (Original post by mynameisntbobk)
finally met someone as weird as me haha, I actually used to randomly start laughing in maths, my teacher would always have have to say "and (my name) don't laugh" at the end of every sentence she said, that made it 10x more funny - completely normal behaviour we're exhibiting -
Hahaha I really hope I don't I probably will now that I've remembered it
LOL, in my old school everyone just got used to the fact that I'd either be eating, laughing or on my phone in class :s
Now everyone just gets confused, its funny how they start laughing for no reason :P

Yup we is weirdos!
4. (Original post by Felix Felicis)
Ok, so a census-taker knocks on the door and asks the woman inside how many children she has and how old they are. The woman replies:
"I have 3 daughters. Their ages are whole numbers and the product of their ages is 36."
"That's not enough information." The census-taker replies.
"I'd tell you the sum of their ages but you'd still be stumpted." The woman replies.
"I wish you'd tell me something...more ." The census-taker replies, licking his lips.
"My oldest daughter, Abbie, likes dogs."
What are the ages of the daughters?
Bit of an effort, but really Felix? It's not really C2. Tell them there's two kids.
The product of the ages is 26, the sum is 10.
How old are they?
5. There is one more question that is bugging me.
Let's say there are 10 women and 6 men (just made up the numbers).
You want to know in how many ways you can arrange them so that no two men sit next to each other.
I know that part of my working will be 10! x 6! but there are more possibilities because there are 10 women. How do I find this?
6. (Original post by Felix Felicis)
You may not rise to it but something else is definitely gonna be rising

If you're referring to the one I think you're referring to, I made that question my biatch.

Ok, so a census-taker knocks on the door and asks the woman inside how many children she has and how old they are. The woman replies:
"I have 3 daughters. Their ages are whole numbers and the product of their ages is 36."
"That's not enough information." The census-taker replies.
"I'd tell you the sum of their ages but you'd still be stumpted." The woman replies.
"I wish you'd tell me something...more ." The census-taker replies, licking his lips.
"My oldest daughter, Abbie, likes dogs."
What are the ages of the daughters?
I dunno :s This isn't even c2? One of these LOL

1 1 36
1 2 18
1 3 12
1 4 9
2 2 9
2 3 6
3 3 4
7. (Original post by joostan)
No stationary points either

Spoiler:
Show
In year 9 I think it was I made it through the intermediate maths challenge and through the next round, but not any further.
This year I missed out on BMO1, but got a gold in the maths challenge
This year I'm after BMO1 at least
Spoiler:
Show
I also took part in the regional maths team challenge thing for my school where we were absolutely hammered.
There was even a team of 4 Asians who looked about 10 - so stereotypical

What was the graph again? I might attempt the SMC next yr
8. (Original post by tigerz)
OHH right, hmm may not be too bad then!
Stole this from the old thread courtesy of Felix
Spoiler:
Show
Show that the sum of the infinite series:

is
9. (Original post by Felix Felicis)
You may not rise to it but something else is definitely gonna be rising

If you're referring to the one I think you're referring to, I made that question my biatch.

Ok, so a census-taker knocks on the door and asks the woman inside how many children she has and how old they are. The woman replies:
"I have 3 daughters. Their ages are whole numbers and the product of their ages is 36."
"That's not enough information." The census-taker replies.
"I'd tell you the sum of their ages but you'd still be stumpted." The woman replies.
"I wish you'd tell me something...more ." The census-taker replies, licking his lips.
"My oldest daughter, Abbie, likes dogs."
What are the ages of the daughters?
2, 2 and 9.
10. (Original post by tigerz)
I dunno :s This isn't even c2?
(Original post by joostan)
Bit of an effort, but really Felix? It's not really C2. Tell them there's two kids.
The product of the ages is 26, the sum is 10.
How old are they?
It doesn't take that long! And it's peculiar But fine, fine...

If denotes then evaluate

11. (Original post by reubenkinara)
What was the graph again? I might attempt the SMC next yr
if memory serves
I'd recommend it - it's a bit of fun
12. (Original post by reubenkinara)
2, 2 and 9.
This is a cheating question because it's not just about maths. We have to assume the people in it talk with no grammatical errors, haha.
13. (Original post by Felix Felicis)
It doesn't take that long! And it's peculiar But fine, fine...

If denotes then evaluate

Look familiar?
I much prefer my ages q.
14. (Original post by tigerz)
LOL, in my old school everyone just got used to the fact that I'd either be eating, laughing or on my phone in class :s
Now everyone just gets confused, its funny how they start laughing for no reason :P

Yup we is weirdos!
Haha so mutual
I can just imagine :')
15. (Original post by tigerz)
I dunno :s This isn't even c2? One of these LOL

1 1 36
1 2 18
1 3 12
1 4 9
1 6 6
2 2 9
2 3 6
3 3 4
The clue in the sum of the factors and the fact there's an oldest.
16. (Original post by joostan)
Look familiar?
I much prefer my ages q.
Ha, and I assume you mean that the product is actually 16 and the ages are whole numbers?
17. (Original post by reubenkinara)
The clue in the sum of the factors and the fact there's an oldest.
Ahhh, I need to remove some of them lols Thanks

(Original post by mynameisntbobk)
Haha so mutual
I can just imagine :')
Hahah yup!
18. (Original post by joostan)
Stole this from the old thread courtesy of Felix
Spoiler:
Show
Show that the sum of the infinite series:

is
Spoiler:
Show
?
19. (Original post by Felix Felicis)
Ha, and I assume you mean that the product is actually 16 and the ages are whole numbers?
I mean exactly what I said. . . And whole number has no real meaning in this context.
20. (Original post by reubenkinara)
?
Personally? No, I just dive straight into it
Hint: - If you want one.
Spoiler:
Show
I told tigerz that it's a Geometric series so it's only fair.

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