document.write( "Question 993865: How many kg of wheat selling at Rs. 5.20 per kg should be mixed with wheat selling at 4.40 per kg to make a mixture of 30 kg selling at Rs. 144.80 ? \n" ); document.write( "

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\n" ); document.write( "How many kg of wheat selling at Rs. 5.20 per kg should be mixed with wheat selling at 4.40 per kg to make a mixture of 30 kg selling at Rs. 144.80 ?
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Let amount of Rs. 5.20 wheat to mix, be F
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document.write( "Then amount of Rs. 4.40 wheat to mix = 30 - F
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document.write( "We then get the equation: 5.2F + 4.4(30 - F) = 144.8
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document.write( "5.2F + 132 - 4.4F = 144.8
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document.write( "5.2F - 4.4F = 144.8 - 132
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document.write( ".8F = 12.8
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document.write( "F, or amount of Rs. 5.20-wheat to mix = , or  kg
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document.write( "Amount of Rs.-4.40 wheat to mix: 30 - 16, or  kg \n" );
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