Smile 發問於 科學及數學數學 · 4 月前

Maths problem: how to do (b), thanks.?

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  • SC147
    Lv 6
    4 月前
    最愛解答

    (a) %tage of profits from sales of drinks in Sun Bakery

    = (54/360) x 100% = 15%

    (b) From (a), %tage of profits from sales of drinks in both Bakeries are the same.

    But the TOTAL PROFITS (from drinks + bread + cookie + cake) in each bakery  WOULD NOT BE THE SAME.

    For eg. :

    Suppose total profits in Sun Bakery = $10000,

       & total profits in Yummy Bakery = $20000.

    Then, profits from sales of drinks in Sun Bakery = 10000 x15% =$1500

    & profits from sales of drinks in  Yummy Bakery = 20000 x15% =$3000

    ∴ the profits from sales of drinks in the 2 bakeries are not the same

    (unless they have exactly the same total profit, which is quite impossible)

    Thus, l don't agree with Emily's claim.

    ~~~~~~~~~~~~~~~~~~~~~~~ The End ~~~~~~~~~~~~~~~~~~~~~~~~~

    NOTE:-

    =====

    %tage of profits in the 2 bakeries ---- THE SAME

    profits in the 2 bakeries ---- NOT THE SAME

    要簡單一點, 那 eg. 可省略!

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