Anonymous
Anonymous asked in 科學及數學數學 · 5 years ago

one math problem: percentages

Daniel sells some jackets with a marked price of $200 each.

(a) Without any discount, it is known that each jacket is sold at a profit of 60%. Find the cost of each jacket.

Ans. $125 (i can do this)

(b) If Daniel sells the jackets at 40 % off, find the percentage profit/loss of selling each jacket.

Ans. 4% loss (I can do this also)

(c) After offering a discount, the jackets are still sold at a profit of 28%. Find the percentage disount offered.

Ans. 20 % (I don't know how to calculate this part C)

3 Answers

Rating
  • 5 years ago
    Favorite Answer

    (a) Let the cost is x

    (200 - x)/x = 60%

    1.6x = 200

    x = 125

    (b) 200 * 60% = 120

    So, the percentage loss is (120 - 125)/125 = -4%

    (c) Let the new price is x

    (x - 125)/125 = 0.28

    x = 160

    So, the discount is 1 - 160/200 = 20%

  • Anonymous
    5 years ago

    Thx a lot !

  • CK
    Lv 7
    5 years ago

    cost = 125

    selling price(at a profit of 28%) = 125X(1.28) = 160

    discount = [(200 - 160)/200]X100% = 20%

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