Challenge #88: Counting Combinations

[Greg_Murray]

Solution attached

[MartinStraech]

Wanted to do a solution that used primes to represent the different items and then create a bit of a hashing function. Didn't figure out an easy way to do a Sumproduct, but the Weighted Avg module works well enough.

Spoiler

[Sihlex1]

This was tricky for me, I have learnt the importance of the sort tool.

Great Challenge!!!! 

[Deevi]

PFA my solution

[Inactive User]

[RobertoEstrada]

My solution!

[jarjarbingie]

Spoiler

[paulburrows]

Here is my solution thanks

[Laszlo_D]

[rougeau14]

Spoiler