Question #e3826

1 Answer
Dec 20, 2017

The dealer must mark the computer 30% above the cost price.

Explanation:

The dealer needs to give a discount of 5%,

#therefore# Selling price (SP) = Marked price(MP) - Discount:

#=>SP = MP - 5/100 xx MP #......... (#because# discount is 5%)

#=> SP = MP (1-0.05)= 0.95xx MP#

#=> SP = 0.95 xxMP#..... equation(1)

He wants a profit of 23.5 % on the Cost price (CP):

So he needs to sell it for :

#SP = CP + 23.5/100 xx CP#

#=> SP = CP(1+ 0.235)#

#=> SP = 1.235xx CP# ........ equation (2)

Equating (1) and (2):

#1.235xx CP = 0.95xx MP#

#=> MP = 1.235/0.95 xxCP #

#=> MP = 1.3 xxCP#

#=> MP =CP(1 + 0.3 )#

#=> MP = CP + 30/100 xx CP#

So the dealer must mark the computer 30% above the cost price.

#ul(Cross- check)#:

Let CP = 100
MP will be 130

After giving Discount 5% ,
#SP = 130- 5/100 xx 130 = 130- 6.5#

#therefore SP = 123.5 # where CP was 100.

So he gets 23.5 % profit.