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  1. Pals_1010

    Statistics Paper 62 AND ITS gt!

    It's just a guess... No need to get fired up o_O
  2. Pals_1010

    Statistics Paper 62 AND ITS gt!

    Around 40.... the paper was relatively easy
  3. Pals_1010

    statistics p62

    It was okay. Better than previous years. Hopefully will get >40
  4. Pals_1010

    Mathematics: Post your doubts here!

    Thanks a lot (y) . It clicked in my mind at the same time as yours it seems :)
  5. Pals_1010

    Mathematics: Post your doubts here!

    You're right! When you consider 5-digit numbers, No of integers = 5! = 120 Total no of integers = 72 + 120 = 192 Thanks :D
  6. Pals_1010

    Mathematics: Post your doubts here!

    I got that as well but the answer in the book is 192 :( How is that possible?
  7. Pals_1010

    Mathematics: Post your doubts here!

    Using 2, 3 , 4, 5, 6 !) How many integers greater than 4000 can be formed, if there is no repetition? 2) How many integers which are multiples of 5 can be formed if there is no repetition? Thank You
  8. Pals_1010

    Chemistry Paper 2

    I wrote Silicon. I thought of tetrachlorides which are liquids
  9. Pals_1010

    Chemistry Paper 2

    Oh I know.... I have drawn the molecule twice. One is the cis- isomer and the other one the trans-isomer :)
  10. Pals_1010

    Chemistry Paper 2

    *high five* Let's hope it's correct then :D
  11. Pals_1010

    Chemistry Paper 2

    Something like that.... Not entirely sure though
  12. Pals_1010

    Chemistry Paper 2

    May the force of ECF be with you :)
  13. Pals_1010

    Chemistry Paper 2

    Yeah. Just hope the rest went just as fine :) Your paper went okay?
  14. Pals_1010

    Chemistry Paper 2

    Maybe 1 mark for the value of 129 but mark deducted for the sign and formula.
  15. Pals_1010

    Chemistry Paper 2

    Arguing and fighting like wolves over one mark only. Oh CIE What have you made us into ? :LOL:
  16. Pals_1010

    Chemistry Paper 2

    Thanks :D... I didn't know we could use this method So when you use this formula, it is combustion of REACTANTS minus combustion of PRODUCTS in this one? (compared to formation of products minus formation of reactants)
  17. Pals_1010

    Chemistry Paper 2

    Delta change of combustion: CO --------------> -283 H2 --------------> -286 Methanol--------> -726
  18. Pals_1010

    Chemistry Paper 2

    How?? :(
  19. Pals_1010

    Chemistry Paper 2

    If you used this formula, you can't get -129. It gives +129
  20. Pals_1010

    Chemistry Paper 2

    ^ Sorry I don't know why the font changed :)
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