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  1. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    Yes, they are the same since they both have the same transformation matrices.
  2. Saad Mughal

    Physics Revision?

    :)
  3. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    XY= 16 cm, NP = 2 cm, OP=OX=OY (radii) Let ON=x, OY=r, XN=NY=8 cm (Midpoint), OP=ON+NP OP=x+2 Therefore, OY=x+2 r=x+2.... (i) Considering Triangle ONY, Using Pythagoras Theorem, (r)^2=(x)^2+(8)^2(r)^2=(x)^2+64.... (ii) Solving Simultaneously, (x+2)^2=(x)^2+64 x^2+4x+4=x^2+64 4x=60 x=15 cm...
  4. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    PQ = 7 cm , MN = 14 cm Let A and B be midpoints of MN and PQ respectively. Therefore AB = 3 cm (given), PB=BQ=3.5 cm, MA=AN=7cm Now, Considering Triangle OAN, Let OA=x, ON=r, Using Pythagoras Theorem, (ON)^2=(OA)^2+(AN)^2 (r)^2=(x)^2+(7)^2 (r)^2=(x)^2+49...... (i) Considering Triangle OBQ...
  5. Saad Mughal

    Physics Help.. Again.

    (e) discuss the role of the following components in the stated applications: radiowaves – radio and television communications, microwaves – satellite television and telephone, infra-red – household electrical appliances, television controllers and intruder alarms, light – optical fibres in...
  6. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    Then you must know that in evety question we get a perfect fit (or near perfect) so that question is one out of the bloom I guess.
  7. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    Oh sorry, I stand corrected; I made a mistake of adding 10% to the sales price. Its fixed. 10% commission if he sells 10 or more, 25% commission if he sells 50 or more. :)
  8. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    Average of m & f = $a Average of m = $b Let average of f = x $a = ($b + x)/2 Hence, x = 2$a - $b
  9. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    Have you solved the chapter from classified?
  10. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    That would be zeros in the middle. Before and after a number, they don't count as sig. figures.
  11. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    :)
  12. Saad Mughal

    Physics Revision?

    By making notes he means that you should write down the important things from the harder chapters that you forget. Making notes helps you in understanding and remembering things.
  13. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    0.8 :) Zeros before and after numbers don't count in sig. fig.
  14. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    10-3(2x-1)=3x+1 10-6x+3=3x+1 13-9x=1 -9x=-12 x=12/9 x=4/3 4/3 is correct. The answer in the mark scheme doesn't even satisfy the equation!
  15. Saad Mughal

    Maths, Addmaths and Statistics: Post your doubts here!

    For 20 Calenders, He Earns = (20*120)(10/100) = Rs. 240 For 75 Calenders, He Earns = (75*120)(25/100) = Rs. 2250
  16. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    The number of moles is the same on both sides, i.e. 1:1 ratio on both sides since all the carbon reacts to form carbon dioxide where all the hydrogen reacts to form water, using this we can calculate the volume of the gases on the left using the formula Volume = No.of Moles * Molar Gas Volume...
  17. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Electromotive force is the work done per unit charge in driving charge around a complete circuit (in other words it is the energy converted from all other forms to electrical energy); it is measured by connecting the voltmeter in series with the circuit. Potential difference is the work done per...
  18. Saad Mughal

    Upcoming Computer ATC Scenario?

    Okay, so I know little about this scenario business, to be honest, it's the least of my worries :p However, I do have a friend who was doing the project and I'll ask him about it, if the scenarios are same for both then we have our answer.
  19. Saad Mughal

    Upcoming Computer ATC Scenario?

    Does it really matter what the scenario is? :p We know what type of questions come so other than the system flowchart, all questions are pretty much irrelevant to the scenario. As far as I'm concerned, I find the ATC very easy and don't think we should be worried too much about the scenario.
  20. Saad Mughal

    Earthquake

    Weirdly enough, I was sleeping too! :p My mom told me about it. International Students Sleeping Hour. ;)
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