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  1. chergh

    Brain Teasers

    o, t, t, f, f, s, s, e, n, t
  2. chergh

    Brain Teasers

    Yep thats it.
  3. chergh

    Calculation results completely different in Excel 2010?

    It really just is a case of going through each number in the calculation and checking it is the same as in your previous spreadsheet. If they are the same then check the brackets etc. in the formula, you can also use the evaluate formula button (no idea where it is in excel 2010 or if it is in...
  4. chergh

    Brain Teasers

    Not so, p3 is not the person coming back over p2 is.
  5. chergh

    Brain Teasers

    Yep you have the first part but there is a further step to the strategy.
  6. chergh

    Brain Teasers

    21 + 6 = 27 27 / 5 = 5.4 5.4 - 6 = -0.6 So the father is probably in the mother.
  7. chergh

    Brain Teasers

    99 corrupt, 1 honest. If you choose 2 and 1 must be corrupt then there is a max of 1 honest politician
  8. chergh

    Brain Teasers

    p1 = 1 min p2 = 2 min p3 = 5 min p4 = 10 min p1 & p2 cross = 2 mins across and 1 min back for p1 = 3 mins p3 & p4 cross = 10 mins and 2 mins back for p2 = 12 mins p1 & p2 cross = 2 mins Total time 17 mins
  9. chergh

    Brain Teasers

    Meat?.....
  10. chergh

    Brain Teasers

    They were more than two of them born so they are triplets or greater.
  11. chergh

    Brain Teasers

    The solution would work with a table of any size
  12. chergh

    Brain Teasers

    Another puzzle: You are playing a game with an other person. There is a perfectly circular table, and an unlimited supply of 10p pieces. You take it in turns to place a coin on the table, taking care that no coin overlaps another (touching is fine), and no coin can stick out over the edge of...
  13. chergh

    Brain Teasers

    Dave drove furthest. Karens Total journey = 90 + y km (y being what she drove on the way back) Dave's Total Journey = x + 100 km (x being what he drove on the way there) Therefore we can say the following: 90 + x = 100 + y Therefore x = y + 10 So karen drove: 90 + y Dave Drove 100 +...
  14. chergh

    Brain Teasers

    I was stumped but my wife proffered this explanation. The guy is very short so he cannot reach the 10th floor button, only the 7th floor. When anyone else is in the elevator he can ask them to press it for him and when it is raining he can use his umbrella to press the button. Otherwise he has...
  15. chergh

    Brain Teasers

    Can I change my answer to 1:p
  16. chergh

    Brain Teasers

    None, all the errors were intentional and therefore aren't really errors.
  17. chergh

    Brain Teasers

    No but your thinking is in the right place.
  18. chergh

    Brain Teasers

    Cost of Strawberries = $200 Day 1 Sales: 50 * $4 = $200 So 50 pounds of strawberries with 1% strawberry content = 1% * 50 Pounds = 0.5 pound strawberry content 0.5 pounds/2% = New Weight/100% New Weight = (0.5 * 100)/2 New Weight = 25 Pounds 25 pounds * $4 = $100 Total Revenue = $300...
  19. chergh

    Brain Teasers

    yes it does. Really think about it. Why does giving you an option to switch change the odds?
  20. chergh

    Brain Teasers

    The error here is that which door he removes is irrelevant, as he will never remove the winning door. What matters is if you switch or not. If the winning door is 1 and you have chosen 1 it doesn't matter if he removes door 2 or 3 as if you switch when given the option you will lose if you do.
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