Answer:
A) selling price of computer is $1329.05
B) Profit is $265.05
C) Profit percentage = 24.9%
Explanation:
Given as :
The cost price of computer = c.p = $1064
The marked price of computer = m.p = $1399
The marked percentage discount = d = 5%
Let The selling price of computer = s.p
Now, According to question
discount% =
![(m.p - s.p)/(m.p)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/xbz312qtdfof93oduuf0wwvsrd9jk7vee8.png)
Or, d% =
![(m.p - s.p)/(m.p)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/xbz312qtdfof93oduuf0wwvsrd9jk7vee8.png)
Or, 5% =
![(1399 - s.p)/(1399)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/uttky5ak5kxe8006bt1uhpr6mggutzuo2j.png)
Or,
= 1 -
![(s.p)/(1399)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/m7damrqfcs89h0rj33qvmoiq1nh42ff14x.png)
Or,
= 1 -
![(5)/(100)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/aypo0uu0itoft3u6p7oppib8vp0wjb16u1.png)
Or,
=
![(95)/(100)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/39i1e0twowmkgli37za0mdgahr4vusz3zg.png)
∴ s.p =
× 1399
Or, s.p = $1329.05
So,The selling price of computer = s.p = $1329.05
Now, Profit = selling price - cost price
or, p = s.p - c.p
Or, p = $1329.05 - $1064
∴ Profit = $265.05
Now, Profit % =
![(\textrm profit)/(c.p)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/krn6qlg9i09nzuo78gi96or699us1j16xr.png)
Or, p% =
![(\textrm 265.05)/(1064)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/yrtuxialswpozyyzldk1ucq5njzotw8l4b.png)
∴ p% = 0.249
i.e p = 0.249 × 100
So, profit percentage = 24.9%
Hence, A) selling price of computer is $1329.05
B) Profit is $265.05
C) Profit percentage = 24.9% Answer