Quantitative Aptitude :: Profit and Loss - Discussion

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Explanation:
Lets assume cost of table is X and cost of chair is Y.
sold price is 20000 and profit is 750 .
so cost for both is 19250.
=> 5X+10Y=19250 ------------ (1)

=> 5*(115/100)X + 10* (90/100)Y =20000 ------- (2)

By solving both eq.
We get X=2140