by selling 180 articles,arnav lost the selling price of 20 articles.find his loss percent
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let the selling price of 1 article be rs.1
therefore, s.p of 180 articles = 180 rs.
a.t.q he had a loss of s.p of 20 articles = rs. 20
c.p =s.p + loss = 180 + 20
c.p = 200
loss % =loss/c.p*100
=>20/200*100
=> 10%
Therefore he had a loss of 10%
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