document.write( "Question 1055438: The average daily income for a certain number of days is rs 25. Excluding the income of rs 54 for
\n" ); document.write( "a certain day, the average income becomes Re 1 less. Find the number of days
\n" ); document.write( " for which the average is Rs 25. \n" ); document.write( "

Algebra.Com's Answer #670689 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "The average daily income for a certain number of days is rs 25. Excluding the income of rs 54 for
\n" ); document.write( "a certain day, the average income becomes Re 1 less. Find the number of days
\n" ); document.write( " for which the average is Rs 25.
\n" ); document.write( "

Let number of days be D
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document.write( "Then total income is: 25D
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document.write( "Excluding Rs 54 makes the new income: 25D – 54, and the number of days: D – 1
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document.write( "We then get the following AVERAGE DAILY-INCOME equation: 
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document.write( "25D – 54 = 24(D – 1) -------- Cross-multiplying
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document.write( "25D – 54 = 24D – 24
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document.write( "25D – 24D = - 24 + 54
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