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A/B

So basically its

(parent*parent)/(child+child)=57

Thanks!

He's 24 ... I think ...

yes he is:D and how old was his wife when she had the twins?

16?

nope she was 11!

???

Mr Kitto is 5 years older thanhis wife so at that time she is 19
and the twins are 8
Doesnt make too much sense does it

By my count, the twins are 3 ...

24*19 = 342 = 57*2*3

Makes:

His age * her age = 342 = 57 * twins * age of each twin

24*19=456

And I made a slight mistake the twins are 4 not 8

I should recalibrate my brain ...

Me 2

Take the two digit number 45
Square it (45*45) to make 2025
Split this 4 digit number in half to make 20 and 25.
Add them (20+25) to make 45.
Which is what you started with.

Find another 2 digit number which does the same

99 does

same number that I chose

My office is on the 3rd floor but there is no elevator so every day I walk up the stairs 2 at a time (for more exercise) but I'm always annoyed that there is one step left over. So the next day I go up 3 steps at a time but again there is one step left over. By counting I realise that even if I did 4,5 or 6 steps at a time there would always be one left over. And no matter how many steps I do (apart from 1 at a time or all of them) there will always be some left over.
How many steps are there?

7 steps per floor?

Any prime number of steps?