我想問1條MATHS題(ENG)

2008-08-16 12:13 am
The cost price of a machine is $10000. The marked price is 25% higher than the cost price.
a)What is the marked price?
b)If the marked price is increased by 10% and the machine is sold at a diacount of 20%,
(i) what is the profit?
(ii) what is the profit per cent?
[要列式同答案]
THX=)

回答 (3)

2008-08-16 12:23 am
✔ 最佳答案
a)
the marked price
=10000x(1+25%)
=10000x125%
=($)12500

b)
(i) the profit
=12500x(1+10%-20%)-10000
=12500x90%-10000
=11250-10000
=($)1250

(ii) the profit %
=1250/10000 x 100%
=0.125x100%
=12.5%
2008-08-16 12:33 am
a)The marked price
=$10000x(1+25%)
=$12500(ans)
bi)The new marked price
=$12500x(1+10%)x(1-20%)
=$11000
The profit
=$11000-$10000
=$1000(ans)
bii)The profit per cent
=($1000/$10000)x100% (use bi ans)
=10%(ans)
參考: myself
2008-08-16 12:24 am
(a)Marked price = $10000 x (1 + 25%)
= $12500

(b)New marked price= $ 12500 x (1 + 10%)
= $13750

Selling price= $13750 x (1 – 20%)
= $11000

(i) Profit = $11000 - $10000
= $1000

(ii) Profit % = ($11000 - $10000) / $10000 x 100%
= 10%


收錄日期: 2021-04-13 15:57:30
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