document.write( "Question 986075: Mohan bought a certain number of notebooks for Rs. 600. He sold ¼ of them at 5% loss. At what price should he sell the remaining note books so as to gain 10% on the whole. \n" ); document.write( "
Algebra.Com's Answer #606998 by srinivas.g(540)\"\" \"About 
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let total no of books be 100
\n" ); document.write( "cost of each book = 600/100
\n" ); document.write( " = 6
\n" ); document.write( " He sold ¼ of them at 5% loss
\n" ); document.write( " i.e he sold 25 ( 1/4 of 100 =25) books for 5 % loss
\n" ); document.write( "so he sold each notebook at = 6-5% of 6
\n" ); document.write( " =\"+6-%285%2F100%29%2A6\"
\n" ); document.write( " =\"6-%2830%2F100%29\"
\n" ); document.write( "=\"6-0.3\"
\n" ); document.write( "=5.7
\n" ); document.write( "so he sold each book at Rs 5.7
\n" ); document.write( "total amount he got after selling 25 books @5.7 = 25*5.7
\n" ); document.write( " = 142.5\r
\n" ); document.write( "\n" ); document.write( "he wants to get 10 % Profit on the whole
\n" ); document.write( "the amount he should get = 600+ 10 % of 600
\n" ); document.write( " = 600+(10/100)*600
\n" ); document.write( " = 600+60
\n" ); document.write( " =660
\n" ); document.write( "already he got Rs 142.5
\n" ); document.write( "so needs to get remaining (660-142.5) amount by selling 75 books
\n" ); document.write( "selling price of 75 book should be = 660-142.5
\n" ); document.write( " = 517.5
\n" ); document.write( "selling price of each book =517.5/75
\n" ); document.write( " = 6.9
\n" ); document.write( "Result :he should sell the remaining books at Rs 6.9 per book
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