(05-05-2023, 01:01 PM)Moth Wrote: [ -> ]Crikey, Martin, that's a big number! The one I came up with only has 2 digits.
Ah, I was using only primes. Silly me.
I'm trying again now, haven't found a 2 digit number yet, my first two attempts came up one short...
(05-05-2023, 07:54 PM)MartinH Wrote: [ -> ] (05-05-2023, 01:01 PM)Moth Wrote: [ -> ]Crikey, Martin, that's a big number! The one I came up with only has 2 digits.
Ah, I was using only primes. Silly me.
I'm trying again now, haven't found a 2 digit number yet, my first two attempts came up one short...
Ah, of course the number itself can count as a divisor. I have a 2-digit candidate. Will look for a smaller one now.
I have a possibility methinks?
Who's ready to go public with their answer?
(06-05-2023, 02:44 PM)Veggie Wrote: [ -> ]Who's ready to go public with their answer?
Hmm dunno..................60?
Nice one Vinny. I got 72 then gave up
How about this one?
To get to the airport, I must travel at 60km/hr. Due to bad traffic, I discover that when I am half way there, I have only averaged 30km/hr.
How fast must I go for the second half of my journey to achieve my overall speed of 60km/hr?
I've a feeling this is one isn't as easy as it first appears. Am I an idiot in saying you should continue at a speed of 30k/hr?
I know the answer and I'm still trying to understand it!
