document.write( "Question 1151741: how many kgs of tea at ₹13per kg must be mixed with 100 kg of tea at ₹17.50 per kg,so that a profit of 40% may be made by selling the mixture at ₹21 per kg? \n" ); document.write( "
Algebra.Com's Answer #773585 by Boreal(15235)\"\" \"About 
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First, find the cost price or x
\n" ); document.write( "40% of x +x=21
\n" ); document.write( "1.4x=21
\n" ); document.write( "x=15 that is the cost to produce\r
\n" ); document.write( "\n" ); document.write( "y kg of tea at 13/kg
\n" ); document.write( "100 kg of tea at 17.50/kg
\n" ); document.write( "100+y kg of tea at 15/kg, cost price\r
\n" ); document.write( "\n" ); document.write( "so 13y+1750=(100+y)15=1500+15y
\n" ); document.write( "-2y=-250
\n" ); document.write( "y=125 kg of tea at 13/kg or 1625
\n" ); document.write( "100kg of tea at 17.50 or 1750 \r
\n" ); document.write( "\n" ); document.write( "This is 225 kg costing 3375 or 15/kg
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