Saturday, August 18, 2012

S12 Maths Supplement

Draw A Model – Add/Subtract The Same (Difference remains the same)
 
At first, Shop A had 156 kg of rice and Shop B had 72 kg of rice.
After  each shop sold the same quantity of rice, the amount of rice that Shop A
had left was 4 times that of Shop B. How many kilograms of rice did Shop A sell?


Solve this, discuss your answer and method. Create one for your friends if you like. :)
Have fun :)
Mrs R
Posted by at

37 comments:

  1. Sabarna :DAugust 18, 2012 at 10:23 PM

    Shop A sold 44kg of rice.

    Yahoo! I won first Commenter award!

    ReplyDelete
  2. UnknownAugust 19, 2012 at 10:19 PM

    Shop A sold 44kg of rice.

    ReplyDelete
  3. Madhu *-*August 20, 2012 at 11:59 PM

    Shop A sold 44kg of rice.When can we start posting our answers?

    ReplyDelete
    Replies
    1. AnonymousAugust 21, 2012 at 2:22 AM

      You already posted your answer! :D

      Delete
    2. Wei XuanAugust 21, 2012 at 2:38 AM

      Yup.Or did you mean method?

      Delete
    3. UnknownAugust 23, 2012 at 10:52 PM

      who's the anonymous guy anyway?

      Delete
    4. Sabarna :DAugust 24, 2012 at 5:15 AM

      The anonymous is not a guy!
      It is a girl!







      And it is me!

      Delete
  4. UnknownAugust 21, 2012 at 12:19 AM

    Shop A sold 44kg of rice.

    ReplyDelete
  5. Marc TayAugust 21, 2012 at 12:57 AM

    44kg of rice.

    ReplyDelete
  6. RyanLauAugust 21, 2012 at 1:00 AM

    Shop A sold 44kg of rice.

    ReplyDelete
  7. UnknownAugust 21, 2012 at 5:40 AM

    ans :44kg

    ReplyDelete
  8. Evelyn SeeAugust 21, 2012 at 6:06 AM

    My answer is 44kg of rice too. :)

    ReplyDelete
  9. This Awkward Turtle Loves MusicAugust 21, 2012 at 11:50 PM

    4 footballs and 3 tennis balls cost £15.60
    3 footballs and 4 tennis balls cost £15.20
    how much does one football cost?
    how much does one tennis ball cost

    i saw this question in the internet....
    Have fun trying it!!!

    Hasha Iman o__O

    ReplyDelete
    Replies
    1. UnknownAugust 24, 2012 at 2:37 AM

      Is 1 football $3.90 and 1 tennis ball $3.50?

      Delete
    2. aiSeptember 9, 2012 at 4:50 AM

      Yup! I agree with Cheryl.

      Delete
    3. Ginwen~September 26, 2012 at 3:01 AM

      Huh? Does that bmeans my answer is wrong?
      I got $2 for 1 tennis ball & $2.40 for 1 football.
      Here's my working.

      Working:
      (FB=football/TB=tennis ball/l_l=1 unit)

      Model:
      $15.60

      FBl_l_l
      FBl_l_l
      FBl_l_l
      FBl_l_l
      TBl_l
      TBl_l
      TBl_l

      $15.20

      FBl_l_l
      FBl_l_l
      FBl_l_l
      TBl_l
      TBl_l
      TBl_l
      TBl_l

      $15.60-$15.20=40cents(difference between TB & FB)
      4x40cents=$1.60(total difference amount)
      $15.60-$1.60=$14.00(7 units)
      $14.00 divde by 7=$2(TB)
      $2+40cents=$2.40(FB)

      TB=$2
      FB=$2.40

      Delete
  10. This Awkward Turtle Loves MusicAugust 21, 2012 at 11:51 PM

    My answer is 44kg

    Hasha Iman

    ReplyDelete
  11. Ginwen~August 21, 2012 at 11:55 PM

    44kg

    ReplyDelete
  12. Nadine LeeAugust 22, 2012 at 12:03 AM

    My answer is 44kg

    PS. Please visit my blog @ www.azonesos.blogspot.com thanks

    ReplyDelete
  13. Tan Li XinAugust 22, 2012 at 3:57 AM

    My answer is 44kg.

    ReplyDelete
  14. K.AshwiniAugust 22, 2012 at 4:04 AM

    Shop A sold 44 kg of rice.

    ReplyDelete
  15. UnknownAugust 23, 2012 at 5:24 AM

    Shop A sold 44kg of rice.

    ReplyDelete
  16. UnknownAugust 23, 2012 at 11:32 PM

    Shop A sold 44kg of rice

    ReplyDelete
  17. HanAugust 24, 2012 at 1:21 AM

    44kg of rice.

    ReplyDelete
  18. AdliAugust 30, 2012 at 7:34 AM

    It is 44kg of rice.

    ReplyDelete
  19. AnonymousAugust 31, 2012 at 10:39 PM

    how did u get 44

    ReplyDelete
  20. Sabarna :DSeptember 1, 2012 at 11:24 PM

    You would have to draw a model. (for this question)

    156 = (4u + weight of the rice sold)
    72 = (1u + weight of the rice sold)

    156-72=84
    84=3u
    84/3=28(1u)

    Shop A sold: 28x4=112 (4u)
    156-112=44
    44=amount of rice that Shop A sold

    Shop A sold 44kg of rice.

    ReplyDelete
  21. nicholasSeptember 3, 2012 at 9:34 PM

    44kg of rice

    <(")Nicholas Tan

    ReplyDelete
  22. UnknownSeptember 4, 2012 at 10:11 PM

    44kg

    ReplyDelete
  23. Ong Yee ChingSeptember 8, 2012 at 9:26 PM

    i also got 44kg

    ReplyDelete
  24. Sze YuSeptember 8, 2012 at 11:05 PM

    4u+(sold)->156kg
    1u+(sold)->44kg


    3u->156-44
    =84kg
    1u->84/3
    =28
    4u->28*4
    =112
    Sold->156-112
    =44kg

    ReplyDelete
  25. aiSeptember 9, 2012 at 4:52 AM

    Shop A sold 44kg of rice.

    ReplyDelete
  26. AnonymousSeptember 24, 2012 at 12:30 AM

    Got 44kg

    ReplyDelete

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