document.write( "Question 817209: A shopkeeper buys 100 pens for Rs 200 and sells 20 of them at a gain of 10%. At what gain percent must he sell the remainder so as to gain 20% in all ? \n" ); document.write( "
Algebra.Com's Answer #491935 by mathstutor494(120)![]() ![]() You can put this solution on YOUR website! Ans : 20% \n" ); document.write( " |