Hi Dave, This is a common problem in Mathematical Ability, The ( # ) means an operation with the first and second operators. If you can see, there is only ONE digit at the answer. The # operator could be: Multiply the Second Op. by the First Op, then sum the first Op and take the less significant digit as the answer. The you will have ( 1 x 4 ) + 1 = 5 ( 2 x 2 ) + 2 = 6 ( 3 x 6 ) + 3 = (2) 1 .... do not consider (2) then ( 4 x 4 ) + 4 = (2) 0 So 4 (#) 4 = 0 Fun and Nice ....... Augusto ----- Original Message ----- From: "Dave Hall" To: Sent: Friday, September 12, 2003 12:50 AM Subject: [OT]: Problem solving > Hi all, > > The following has been bothering me. It was a problem that was supposed > to be a brain teaser for year 7 (12 year old) students. > > Can anyone work it out? > > If : > 1 (#) 4 = 5 > 2 (#) 2 = 6 > 3 (#) 6 = 1 > then, > 4 (#) 4 = ? > > Cheers, > > Dave > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body