quote:

*Originally posted by ariel*

Solve this as quick as you can in your head!

Take 1000. Add 40.Add another 1000. Add 30. 1000 again Plus 20. Plus 1000. And plus 10. What is the total ?

Depends upon your interpretation of language.

The simplest interpretation would to be assume pure addition throughout, which amounts to 4100.

On the other hand, the word 'take' at the beginning could be interpret as a subtraction, giving you only 2100.

The third '1000' does not even specify whether addition or subtraction is to be performed, and thus one take an arbitrary view that this should be another subtraction, which would amount to a mere 100.

Not sure what this is all meant to prove.

Incidentally, it is easier if you calculate it in a two pass operation, with the smaller numbers summed from right to left, rather than left to right.

**G***eorge*