the market price of the computer is rupees 22000 after allowing 10% discount dealer still makes a profit of 20% find the cost price of computer
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Profit = selling price - cost price
let the cost price be c
The selling price:
= 10% discount
= discounted price = 100%(marked price) - discount (10%) = 90%
= 90%/100% × 22000
= 0.9 × 22000
= rs. 19800
This discounted price is the selling price.
Therefore profit = 19800 - C
% profit = profit/ cost price ×100%
= 19800-c/ c ×100% = 20%
= 100(19800-c)/c = 20
= 1980000 - 100c = 20c
= 120c = 1980000
= c = 1980000/120
c = Rs. 16500
Therefore the cost price of the computer is Rs. 16500
let the cost price be c
The selling price:
= 10% discount
= discounted price = 100%(marked price) - discount (10%) = 90%
= 90%/100% × 22000
= 0.9 × 22000
= rs. 19800
This discounted price is the selling price.
Therefore profit = 19800 - C
% profit = profit/ cost price ×100%
= 19800-c/ c ×100% = 20%
= 100(19800-c)/c = 20
= 1980000 - 100c = 20c
= 120c = 1980000
= c = 1980000/120
c = Rs. 16500
Therefore the cost price of the computer is Rs. 16500
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