* How many edges on a triangular pyramid?

That’s not an easy question. I mean, it’s quite easy if you make an assumption that they’re talking about a 3d structure, but nowhere does it state that. It’s like a bloody physics question – vague and relies on assumptions.

I mean, it’s quite easy if you make an assumption that they’re talking about a 3d structure

Umm, a pyramid is a 3D polygon.

It’s like a bloody physics question – vague and relies on assumptions.

Not at all. Physics is governed by laws and the parameters of the question. The answer is either right or wrong, there is no middle ground (unless you get marks for the working ;))

What’s the answer to n+1?

v = u+at

u=1 a=5

Find v

v = 1 + 5t

Easy.

Just because v is in terms of t, doesn’t mean it’s not solved 🙂

What’s the answer to n+1?

depends entirely on what n is

n’nabit

There’s a woman and a clock involved.. She’s going to be late because it takes 2hrs to do make-up and hair and x = unknown amount of time to decide on what to wear. Given that the husband altered the clock forward 45 mins to make them on time we should really be asking about y? The unknown variable of y and how there can be so many chimes of the clock yet the woman is still 30 mins late is the answer.

What’s the answer to n+1?

A bigger shed

Just because v is in terms of t, doesn’t mean it’s not solved

Ha. Ha.

You know what I meant. 😛

I did, but I wanted to make a point 🙂

@miketually

a) P(two_orange_sweets_in_a_row)=(6/n){5/(n-1)}=1/3
90 = n(n-1)
n^2-n-90 = 0

b) n=10 using the quadratic equation formula. Must admit I had to work that out.

How many sweets do I get?

@curiousyellow

You get 8; she’s already eaten two 🙂

OK maths fans how about this one…
There was an old woman who lived in a shoe. She had 9 children at regular intervals of 15 months. The oldest is now six times as old as the youngest. How old is the youngest?
(for 12 and 13 year olds)

@I_dib_dab

20 months old

(8 x 15) / 6

b) n=10 using the quadratic equation formula. Must admit I had to work that out.

How many sweets do I get?

Not as many as you would if you’d simplified the equation to (n-10)(n+9) = 0, from whence you’d find the two answers for n are +10 and -9

And since -9 is clearly not an answer in this case, n=10

^
found the teacher’s pet…

aka the boy with most sweets.

@stevehine nope…try again