Find the loss or gain as percent if the cost price of 10 articles all of the same kind is equal to selling price of 8 articles
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Answer:
cp of 10 articles = sp of 8 articles = x
cp of 1 article = x/10
sp of 1 article = x/8
gain = x/8 - x/10
=5x - 4x /40
=x/40
gain % = gain /cp ×100
= x/40/x/10 ×100
=x/40 × 10/x ×100
= 25%
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