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    Kastro

    @Kastro

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    Latest posts made by Kastro

    • RE: Q&A - P5 Math

      sushi88:
      Kastro:

      Jane has been saving part of her allowance in a bag every month. The bag containing $2 and $10 notes had a total value of $1248. 9 pieces of 10 notes were exchanged for $2 notes of the same value. In the end, the number of 10 notes was the same as the $2 notes. How many $2 notes were there at first?


      Please help. Thanks.

      $10 ----- [----u-----][------45-----][----(-9)----]
      $2--------[----u-----][------45-----]

      9x10=90=2x45

      So originally 10(u+45+9) + 2(u) -> 1248
      10u +540 +2u ->1248
      12u-> 708
      u-> 59



      Hence there were 59 $2 notes at first.








      :thankyou: sushi88

      posted in Primary 5
      K
      Kastro
    • RE: Q&A - P5 Math

      Jane has been saving part of her allowance in a bag every month. The bag containing $2 and $10 notes had a total value of $1248. 9 pieces of 10 notes were exchanged for $2 notes of the same value. In the end, the number of 10 notes was the same as the $2 notes. How many $2 notes were there at first?


      Please help. Thanks.

      posted in Primary 5
      K
      Kastro
    • RE: Q&A - P5 Math

      Thank you, Ice Watch !

      posted in Primary 5
      K
      Kastro
    • RE: Q&A - P5 Math

      Can someone help?


      Mike spent $75 of his salary on a wallet. He spent 1/4 of the remaining money on a pair of shoes. Given that he was left with 1/3 of his total salary, how much was Mike’s salary?

      Thank you.

      posted in Primary 5
      K
      Kastro
    • RE: The Return Of The HAZE.....

      Our psi reading not chun....very disappointed :frustrated:


      I checked malaysia psi n they real time n even showed our psi....tally with current situation, very hazy n smelly

      http://aqicn.org/map/malaysia/#@g/1.1906/103.7558/10z

      posted in Recess Time
      K
      Kastro
    • RE: Missing Malaysia airlines plane

      Finally, a piece of wreckage found.... But, yet to be confirmed, if it belongs to MH370...... :sad:






      SAINT-ANDR (FRANCE): A mysterious piece of plane debris washed up on the French Indian Ocean island of La Reunion on Wednesday, prompting some speculation it could be part of the missing Malaysia Airlines flight MH370.

      The two-metre-long piece of wreckage, which seemed to be part of a wing, was found by people cleaning up a beach.

      “It was covered in shells, so one would say it had been in the water a long time,” said one witness.

      French air transport officials have already opened a probe to investigate where the wreckage could have come from.

      Xavier Tytelman, an expert in aviation security, said it could not be ruled out that the wreckage belonged to MH370, which vanished without trace in March last year.

      No part of the wreckage has ever been found in one of aviation’s great mysteries and Malaysian authorities in January declared that all on board were presumed dead.

      The plane disappeared en route from Kuala Lumpur to Beijing with 239 people on board.

      Tytelman noted that local media photos showed “incredible similarities between a #B777 flaperon and the debris found,” refering to a Boeing 777 -- the type of plane that disappeared.

      He also noted a reference on the wreckage: BB670.

      “This code is not a plane’s registration number, nor serial number. However... it’s clear that this reference would allow a quick identification. In a few days, we will have a definitive answer,” Tytelman said.

      Boeing said in a statement it remained “committed to supporting the MH370 investigation and the search for the airplane”.

      “We continue to share our technical expertise and analysis. Our goal, along with the entire global aviation industry, continues to be not only to find the airplane, but also to determine what happened - and why,” said the US aviation giant. - AFP

      posted in Recess Time
      K
      Kastro
    • RE: Q&A - P4 English

      Hi D3@n


      Thank you very much for your kind attention and help.

      :thankyou:

      posted in Primary 4
      K
      Kastro
    • RE: Q&A - P4 English

      Can someone help?


      Rewrite each sentence by adding the preposition of time in the bracket to describe the sentence more fully.

      1. Let’s meet later. (during)
      ________________________________

      2. My grandfather decided to stop smoking. (by)
      ________________________________________

      3. My family has been living in this house. (for)
      _________________________________________

      4. My family has been living in this house. (since)
      _________________________________________


      TIA

      posted in Primary 4
      K
      Kastro
    • RE: Q&A - P4 Math

      Thank you, guest2013.

      posted in Primary 4
      K
      Kastro
    • RE: Q&A - P4 Math

      Pls help. TIA


      Before noon, Adam and Bob took the same number of photos at a party. After lunch, Adam was tasked to take another 24 photos. Given that Adam had taken 5 times as many photos as Bob in the end, how many photos did Bob take?

      posted in Primary 4
      K
      Kastro
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