LOL . . . the debate continues.
Actually, I once used a similar problem in HP ICT Training. In my case, it was this one: 1 + 2 x 3 = ?
Some said 9, some said 7. Oddly, when I expressed it the following way, time to solve was longer: 1.0 + 2.00 x 3.000 = ___
The answer to your question is 8.96. Also, make the responders prove their answer.
Since I am a world champion thread hijacker, I'll ask the gathered group to give the next number in this series and explain their guess.
If you are bored, try these math problems.
Unsolved Problems -- from Wolfram MathWorld