by selling a chair for ₹75,a man gained as much percent as its cost. Calculate the cost of the chair
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P % = sp-cp /cp ×100
cp = 75 -cp /cp ×100
Cp/100 ×cp =75 -cp
Cp =x
x^2/100 + x - 75 =0
= B^2 +- √b^2 -4ac /2a
cp = 75 -cp /cp ×100
Cp/100 ×cp =75 -cp
Cp =x
x^2/100 + x - 75 =0
= B^2 +- √b^2 -4ac /2a
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