Monday 10 February 2014

Another Double IF for you to try!

Mr Lim sells green and red pens. If he sells 32 green pens per day and 16 red pens per day, he will have 144 green pens left when all the red pens are sold. If he sells 12 green pens per day and 24 red pens per day, he will have 432 green pens left when all the red pens are sold. How much money will Mr Lim collect from the sale of all  the red pens if each pen cost $1.20?
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11 comments:

  1. Unknown10 February 2014 at 20:41

    3u:432-144=288
    1u:288/3=96
    2u:96*2=192
    192*$1.20=$230.40

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    Replies
    1. Unknown10 February 2014 at 21:12

      This comment has been removed by the author.

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  2. Joy Chua10 February 2014 at 20:42

    2u->432-144
    =288
    1u->288/2
    =144
    144x$1.20=$172.80
    $172.80x2=$345.60 Ans:$345.60

    ReplyDelete
  3. Unknown10 February 2014 at 21:29

    This comment has been removed by the author.

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  4. Dot11 February 2014 at 14:17

    230.4

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  5. Dot11 February 2014 at 14:22

    9u=432-144
    =288
    1u=288./.9
    =32
    6u=32x6
    =192 (Red pen Number)
    192x1.2=230.4 (Amount)

    Ans = $230.40

    ReplyDelete
  6. Unknown11 February 2014 at 16:44

    My and same as Eileen

    ReplyDelete
  7. Joy Chua11 February 2014 at 18:23

    Careless mistake.
    3u->432-144=288
    1u->288/3=96
    96x1.20=115.20
    115.20x2=230.40
    Ans:$230.40

    ReplyDelete
  8. Unknown11 February 2014 at 21:27

    This comment has been removed by the author.

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  9. Anonymous11 February 2014 at 22:00

    My answer same as Eileen.
    Shu Qin

    ReplyDelete
  10. Unknown11 February 2014 at 22:58

    Good job to those who have tried. Good for you, Joy, for spotting your mistake.

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