1.

A man buys 8 pens for Rs 9 and sells 9 pens for Rs 8, Find profit or loss%?

Answer»

21%



By LCM methd

take LCM of 8 and 9 that will be 72

CP of 72 pens will be 81 Rs

SP of 72 Pens will be 64 Rs

Clearly there is LOSS which will be EQUAL to 81 - 64 = 17 Rs

Loss % = (17/81)*100 = 20.98 or 21%



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