Question

12% profit on a computer is rs.540
1.find cost price of the computer
2.find sale price of the computer

Answer 1

Given :

profit % = 12%

profit = 540

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Finding cost price -

Let cost price = x

profit percentage on cost price = 12x/100

According to the given question

$x + \dfrac{12x}{100} = 540$

$\dfrac{100x + 12x}{100} = 540$

$100x + 12x = 540 \times 100$

$112x = 54000$

$x = \dfrac{54000}{112} =482.14$

$x = 482.14 \: (approxmately \: 482 \: )$

Cost price is Rs 482.

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Checking the profit -

CP + (CPxprofit %)

= 482 + (482 x 12/100)

= 482 + 57.84 (Approx 58 )

= 482 + 58

= 540. ( which is already given )

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Finding the Selling Price -

SP = CP + Profit

SP = 482 + 540

SP = 1022.

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Hence :

$\bold{Cost \: price \: is \: Rs \: 482}$

$\bold{Selling \: price \: is \: Rs \: 1022}$