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    Tutor MathsGuru: Ask me for your burning Maths questions!

    Scheduled Pinned Locked Moved Primary Schools - Academic Support
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    • MathIzzzFunM
      MathIzzzFun
      last edited by

      ongmt:
      Fazillah, Linda and Winnie each owned a collection of comics. The total collection owned by Linda and Winnie was 3/2 as many comics as Fazillah owned. Linda owned 4/5 as many comics as the total collection owned by fazillah and Winnie. If Winnie owned 169 fewer comics than Linda, how many comics must Fazillah and Linda each give to Winnie in order for the three :? gilrs to have same number of comics?


      Plse help.
      Hi

      Fazillah : Linda + Winnie --> 2 : 3
      Fazillah : Linda + Winnie + Fazillah (=Total) --> 2 : 5

      Linda : Winnie + Fazillah --> 4 : 5
      Linda : Linda + Winnie + Fazillah (=Total)--> 4 : 9

      Equalize Total -
      Fazillah : Total --> 18u : 45u
      Linda : Total --> 20u : 45u
      So, Winnie --> 45u - 18u - 20 u = 7u

      Linda had 169 more comics than Winnie
      So, 20u - 7u --> 169
      13u --> 169, 1u --> 13 comics

      Total --> 45u, 45u / 3 = 15u --> each girl will have 15u in the end.
      Number of comics given by Fazillah to Winnie --> 18u - 15u = 3u --> 39 comics
      Number of comics given by Linda to Winnie --> 20u - 15u = 5u --> 65 comics

      cheers.

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      • O
        ongmt
        last edited by

        :thankyou: - MathIzzzFun

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        • C
          Chongalicia
          last edited by

          Thanks for sharing ur knowledge. Really helpful!

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          • C
            cherinelee
            last edited by

            Wow…glad to hv found my ans for my DS.


            Thanks.

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            • MathIzzzFunM
              MathIzzzFun
              last edited by

              u r welcome 😄


              cheers.

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              • E
                esibuyer
                last edited by

                Hi, can solve the following question for my girl.

                Grandma is 80 years old and his son is 52 years old. How many years ago was Grandma thrice as old as his son?
                Thanks

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                • MathIzzzFunM
                  MathIzzzFun
                  last edited by

                  esibuyer:
                  Hi, can solve the following question for my girl.

                  Grandma is 80 years old and his son is 52 years old. How many years ago was Grandma thrice as old as his son?
                  Thanks
                  Hi

                  Age difference will always remain the same.

                  Age difference = 80 - 52 = 28
                  When grandma was 3 times as old as her son,
                  grandma's age --> 3u
                  son's age --> 1u
                  age difference --> 2u
                  2u --> 28, 1u --> 14
                  52-14 = 38 years ago

                  cheers.

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                  • O
                    ongmt
                    last edited by

                    1) Dan harvested some apples. He sold to Adam 3/4 of the apples and another 105 apples. He sold to Geradine 3/4 of the remainder but took back 55 apples. Dan had 890 apples left.


                    a) How many apples did Geradine have after returning 55 apples to Dan
                    b) How many apples did Farmer Dan harvest?

                    2) Tank X and Y are each filled with some water. If water from tank Y is poured into Tank X until water in tank X reaches the brim, there will be 8L of water left in Tank Y, If water from Tank X is poured into Tank Y until water in Tank Y reach the brim, there will be 26L of water leftt in Tank X. The ratio of volume of of Tank X to Taank Y is 5 : 3. How many more litres of water are needed to fill both tanks to their brim?

                    3)A florist had total 272 roses and lilies in ratio of 12:5. After selling away twice as many roses as Lilies, the ratio of roses to Lilies was 5:2. How many roses did she shell?

                    Plse help. Thks

                    :slapshead:

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                    • MathIzzzFunM
                      MathIzzzFun
                      last edited by

                      ongmt:
                      1) Dan harvested some apples. He sold to Adam 3/4 of the apples and another 105 apples. He sold to Geradine 3/4 of the remainder but took back 55 apples. Dan had 890 apples left.


                      a) How many apples did Geradine have after returning 55 apples to Dan
                      b) How many apples did Farmer Dan harvest?

                      2) Tank X and Y are each filled with some water. If water from tank Y is poured into Tank X until water in tank X reaches the brim, there will be 8L of water left in Tank Y, If water from Tank X is poured into Tank Y until water in Tank Y reach the brim, there will be 26L of water leftt in Tank X. The ratio of volume of of Tank X to Taank Y is 5 : 3. How many more litres of water are needed to fill both tanks to their brim?

                      3)A florist had total 272 roses and lilies in ratio of 12:5. After selling away twice as many roses as Lilies, the ratio of roses to Lilies was 5:2. How many roses did she shell?

                      Plse help. Thks

                      :slapshead:
                      Hi

                      Q1. You should be able to solve this... I will provide some pointers...
                      Before Geraldine returned the apples to Dan, how many did Dan have ? This number represent 1/4 of the remainder after selling Geraldine the apples. You can work backwards from here.

                      Q2.
                      http://i41.tinypic.com/709vty.jpg\">

                      Q3.
                      At first,
                      Roses --> 12/17 x 272 = 192
                      Lilies --> 272 - 192 = 80

                      Roses left : Lilies left
                      = 192-2u : 80 - 1u
                      = 5 : 2

                      cross multiply or equalize:
                      384 - 4u = 400 - 5u
                      1u = 16

                      Roses sold --> 2 x 16 = 32

                      cheers.

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                      • H
                        Herbie
                        last edited by

                        I hv one qn.

                        The cost of a movie icket for an adulr is x, while $4 less. On a particular day, the ratio of the no. Of adults to children watching a movie was 1:6, they spent $322 in total.
                        Express the no. Of adults watching the movie in terms of x.

                        Tq

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