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In this section you can see solved examples on profit and loss. From these problems I hope you can solve your questions.1)Samy sold his dinning table set at a loss of 20%. If he had sold it for $ 800 more, he would have received a profit of 5%. Find the cost price .

Let the cost price be $ 100

So when C.P = 100 , loss of 20% means

S.P = 100 – 20 = 80

Profit of 5% means S.P = 100 + 5 = 105

The difference of two S.P = 105 - 80 = 25

If the difference is 25, C.P = $100

If the difference is $ 800 , C.P = (100 / 25 ) x 800

C.P = $ 3200

Let C.P of 1 pencil is $1 .

C.P of 10 pencils = $ 10

S.P of 10 pencils = C.P of 11 pencils = $ 11

Profit on 10 pencils = 11 – 10 = $1

Profit % = ( 1/ 10) x 100 = 10 %

∴C.P of 2nd buffalo = 30,000 - x

------------------- x C.P

100

S.P = 100 - 15x

-----------= 85x/ 100

100

--------------------- x C.P

100

S.P = (100 + 19)(30,000- x) 119(30,000 -x)

-------------------- = ----------------

100 100

85x/ 100 = 119 ( 30,000 - x)/ 100

⇒ 85x = 119(30,000 - x)

⇒ 85x = 3,570,000 - 119x

⇒ 85x + 119 x = 3,570,000

⇒ 204x = 3,570,000

⇒ x = 3,570,000 / 204

⇒ x = $17,500

C.P of 2nd buffalo = 30,000 - 17,500 = $12,500

• Finding profit or loss percent

• Finding cp when sp and Profit or Loss percent are given

• Finding sp when cp and Profit or Loss percent are given

• Solved examples on Profit and Loss

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