Question

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Answer 1

Answer:

defined x and y

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let the cost of table be x

and the cost of chair be y

Find the original selling price of table and chair

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profit from the table is=10% of x=0.1x

selling price of table=x+0.1x=1.1x

profit from the chair=y+0.25y=1.25y

total selling price=1.1x+1.25y

From the equation...

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1.25x+1.1y=1065

putting the equations together...

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1.25x+1.1x=1065.......[1]

1.1x+1.25y=1050.......[2]

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[1]×1.25: 1.375x + 1.5625y=1312.6......[3]

[2]×1.1: 1.375x +1.21y=1171.50............[4]

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[3]-[4] :

0.3525y=141

y=400-------------------------------- sub into [1]

find x......

1.1x+1.25y=1050

1.1x+1.25(400)=1050

1.1x+500=1050

1.1x=550

x=500-------------------------------------

cp of table is =x=500

cp of chair is =y=400

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