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A shopkeeper purchase some article 20 for price30 and he spend same amount an purchase some more article at the rate of 30 for price 20 then he sell all of them at the rate of 50 for price40​

answers: 1
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Answer:

Let C.P of one article =1 Rs.

Then C.P of 40 article=40 Rs.

According to the question

S.P of 50 article =C.P of 40 article=40 Rs.

We assume that C.P of one article =1Rs.

then C.P of 50 article=50 Rs.

Loss=50-40=10 Rs.

Loss %=

50

10 ×100=20%

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