The cost price of 11 pencils is equal to the Selling price of 10 pencils .Find the loss or gain percent , whatever may be the cost of 1pencil.
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cp of 11 pencil=sp of 10 pencil
cp of 11 pencils be X
cp of 1 pencil be x/11
sp of 10 pencils =X
sp of 1 pencil x/10
loss/profit=(x/10)-(x/11)
=(11x-10x)÷110
=x÷110
it will be profit
cp of 11 pencils be X
cp of 1 pencil be x/11
sp of 10 pencils =X
sp of 1 pencil x/10
loss/profit=(x/10)-(x/11)
=(11x-10x)÷110
=x÷110
it will be profit
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