Find the profit percent when the Sp of 6 pens is equal to the Cp of 9 pens.
Please help me.
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Take the cp as 100 and sp as x
therefore 9×100=6×x
x=900÷6
x=150
so sp is 150 and cp is 100
so profit is of 100
profit%=50÷100×100
=50%
therefore 9×100=6×x
x=900÷6
x=150
so sp is 150 and cp is 100
so profit is of 100
profit%=50÷100×100
=50%
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