an electrical company sell an air condition for $2880at aprofit of 80%
(A)find the cost price of the air conditioner
(B)hence find the profit
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2006-12-30 1:23 am
回答 (3)
2006-12-30 1:32 am
✔ 最佳答案
A.the cost price of the air conditionerlet the cost be a
a x (1+0.8) = $2880
a x 1.8 = $2880
a = $2880 / 1.8
a = $1600
the cost of the air conditioner is $1600
或者可以就咁計：
$2800 / (1+0.8)
=$2800 / 1.8
=$1600
B.find the profit
$2880-$1600
=$1280
2006-12-30 1:35 am
(A)
The cost:
2880/(1+80%)
=$1600
(B)the profit:
2880-1600
=$1280
The cost:
2880/(1+80%)
=$1600
(B)the profit:
2880-1600
=$1280
參考: myself
2006-12-30 1:28 am
Cost price:
$2,880 * 100 / 180 =$1,600
Profit:
$2,880 - $1,600 = $1,280
$2,880 * 100 / 180 =$1,600
Profit:
$2,880 - $1,600 = $1,280
收錄日期: 2021-04-22 22:26:10
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