a man buys two pens for at rupees 20 each he sells one and the gain of 5% and other at the loss of 5% find his profit or loss percent
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Answer:
CP of first pen=20
G%=5%
Sp=(100+G%)/100×Cp
= 105/100×20
=21
Cp of Second pen=20
L%=5%
Sp=(100-L%)/100×Cp
=95/100×20
=19
Total cp=20+20=40
Total sp=21+19=40.
So, Cp=Sp there is no loss and no gain.
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