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  1. D

    Mathematics: Post your doubts here!

    You are welcome..
  2. D

    Mathematics: Post your doubts here!

    Q22 c : : : DAT= 58... coz triangle DAC and DAT are congruent... so angle DCA=DTA... Q22 d : : : angle ODC= angle OCD as they both are radius of same length and their opposite angles will be equal... so OCD= 34... now angle OCA= 58-34= 24... OCA=OAC as both are also radius and their opposite...
  3. D

    Mathematics: Post your doubts here!

    deceleration means that the acceleration is reducing.. u can see the pics that this happens b/w 30 and 35 seconds... use thi: acceleration= change in velocity/ time taken... = 15-0/35-30 = 15/5=3
  4. D

    Mathematics: Post your doubts here!

    its easy... look.. for median you first need to find the middle value by the formula n+1/2 where n is 125... 125+1/2= 63 63 doesn't come in the first column as the frequency is 50... but comes in the second column as 50+40=90... all numbers below 90 and above 50 lies in column 2... the number...
  5. D

    Mathematics: Post your doubts here!

    My Name .. Q15: find the distance of two rectangles, a trapezium and a triangle... in short find the area under graph... distance= (25*10)+(1/2*25+15*10)+(10*15)+(1/2*5*15) simplify it.. :)
  6. D

    Mathematics: Post your doubts here!

    1 mark is for the solution and 1 mark for the answer.. :)
  7. D

    Mathematics: Post your doubts here!

    Q4.d = 30/120 * 29/119 = 0.0609 (30/120 because there are 30 children with heights b/w 150-155... and 20/119 because 1 children is deducted as he is chosen as the 1st child.. ) Q24.iii = 7/50 * 6/49= 0.0171 (50 is the total number of children. this question needs to be solved in a similar way...
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    Mathematics: Post your doubts here!

    Im also doing IGCSE's but this book is what i studied for preparation IGCSE's books arent much helpful.. By the way u are welcome.. ;)
  9. D

    Mathematics: Post your doubts here!

    There are specific types of matrices given in D4. If u have that book, search for it in it... It is given for every type of transformation either it be on y-axis as invariant or x-axis as invariant. If u have that book, search for it otherwise i will post it in here..
  10. D

    Pak studies and english

    Pak studies and english
  11. D

    Mathematics: Post your doubts here!

    (i) 4/6 (ii) 3/6 (iii)2/6 (iv)3/6+2/6= 5/6 (According to me the question say that we have to find shaded section 1 or a section numbered 1. So its easy to find like this. However, if we take the question the other way i.e. shaded section or a section numbered 1, the answer comes 7/6 which is not...
  12. D

    Mathematics: Post your doubts here!

    It is an equlateral triangle so all angles will be 60.. its a quadrilateral so 180-60=120
  13. D

    Mathematics: Post your doubts here!

    Neither do i know about that.. but some questions come like "2^2x=4^2 Find X?" ... i just make the base same of the both sides... the answer will be = 2^2x =2^4 =2x=4 x=4/2=2.. :) i dont have any idea how to use log and in.. if u know anything about it please tell me... :)
  14. D

    Mathematics: Post your doubts here!

    I found OAE 180-116= 64 from the properties of circle that says "The sum of opposite angles of a quadrilateral are equal to 180"... its necessary to find OAE if we want to find EOD which is necessary if we want to find EDO... :)
  15. D

    Could you give me the link where i could get it??

    Could you give me the link where i could get it??
  16. D

    Mathematics: Post your doubts here!

    BOC= 90-38= 52 CBO= 180 - 52/ 2 = 64 ECB= 180-64 = 116 OAE= 180-116= 64 AOE= 180-64-64= 52 EOD= 90 - 52 = 38 EDO= 180-38/2 = 71 DONE
  17. D

    what is this??

    what is this??
  18. D

    U are welcome.. can u tell me if u any knowledge of guess papers???

    U are welcome.. can u tell me if u any knowledge of guess papers???
  19. D

    i got the topic "FUTURE" in my exam.. :)

    i got the topic "FUTURE" in my exam.. :)
  20. D

    Need 2014 english second language oral topics along with the tips

    i just finished my exam... i got the topic of "FUTURE"... it was easy though.. :D
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