Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - 7ate9

Pages: [1]
1
Science / Re: Logic maths: having fun 2
« on: April 23, 2012, 12:36:20 am »
Reason for multiplying (1/19) and (1/20) is because once one ball is chosen you only have 19 balls left to choose... Only 1 of the 19 will suffice, to equal the sum of 30.. :) hope that explanation helps..

Pages: [1]