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  1. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he So many brackets are not required in the first question. 3+48÷(4*6)-1=4 will be good enough. Your answer is wrong. I don't know how you eliminated y? :S And even if its +2y and -2y and you expand your answer you don't get back to...
  2. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he abcde has explained this perfectly. :)
  3. OakMoon!

    URDU A or B

    The main problem with studying urdu B is the marks deduction when you get an equivalency certificate. Otherwise, there is no problem in appearing in this subject. As far as I know, all institutions offer it.
  4. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he Visit www.britishcouncil.org.pk for further information. Contact your school's examination office and ask them if you can give the exa next year on behalf of the school as that will be the best option. Otherwise, for registering...
  5. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he They are not mathematics questions. In one question in Biology, that abcde knows about, there were different answers in the examiner report and the marking scheme and the examiner report was contradicting its own answer. It happened...
  6. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he And can you please put aside the ER and look at the logic? Such questions come frequently in probability questions.
  7. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he The wording is confusing, it says that the candidates forgot the factor of 2 and used a denominator of 150*150 in place of 150*149 which was wrong, they have told two mistakes and not two forgetfulnesses. Apt here says that the...
  8. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he 2*10/150*25/149=10/447 Since, one student is chosen first and then the second is chosen, the total number of possibilities for the second selection have to be deducted by one as one student has already been chosen. While, we multiply...
  9. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he "If working is needed for any question it must be shown in the space below that question. Omission of essential working will result in loss of marks." This is written on the first page of the mathematics paper. Which tells you to show...
  10. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he I believe the answer in the ER is wrong. It should be 10/447. It must have been a miss print. You should make the dotted guide lines which allows the examiner to check how you found out the answer. And incase your graph is not...
  11. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    After the initiative taken by Math_angel in the IGCSE section, I have made this topic for students of O'levels. You can post any question or any problem here and me along with other XPF users will try to help you as soon as possible. This topic is a feasible option as it won't bring a hassle of...
  12. OakMoon!

    help needed with this confusing math question!!

    MY fell XPF users, you just can't assume the lines to be perpendicular. There is something missing from the question. And I am pretty sure about it.
  13. OakMoon!

    help needed with this confusing math question!!

    Salmanpakrocks please read all the posts on the topic and then comment. :P That's what the problem is. The value of d.
  14. OakMoon!

    help needed with this confusing math question!!

    I can be 40 and it can be 50. The problem is that you can't take out an answer because you can't assume the lines to be perpendicular to each other unless you have further details. @slamanpakrocks: Yes. These are correct, they are pretty straight forward.
  15. OakMoon!

    chemistry questions

    1. Magnesium Ethanoate. Mg(CH3COO)2. The hydrogen atom is removed. 2. You can easily take out the percentage by using Ar of all the atoms involved. Potassium Nitrate. Nitrogen's Mr= 14. Total Mr=19+14+16*3=81 Percentage=14/81*100=17.28% Ammonium Sulphate. Nitrogen's Mr=14*2=28. Total...
  16. OakMoon!

    Physics notes

    Here they are. These might help, too. :)
  17. OakMoon!

    help needed with this confusing math question!!

    It's a messed up question. Just put in d=40­­° and you'll get the system fine too and then put d=50° and then again it doesn't go wrong. @Maths_angel: You've missed a critical detail in this question that is not here. Check it out, because I am sure it can't be solved like this. Or it has two...
  18. OakMoon!

    extra subjects

    No problem ma. That's why I am here. :)
  19. OakMoon!

    extra subjects

    That's good. You can easily get an A* if you work hard. Has statistics been introduced in June sessions?
  20. OakMoon!

    extra subjects

    @salmanpakrocks: It is useful and it is 'not' useful. What I mean by that is keh there is a Statistics paper in A'level maths and most of the topics are the same as statistics in O'levels. So you'll get an advantage over others just like you do after doing Additional Mathematics. But its not...
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