document.write( "Question 759791: 15 boys earn rupees 900 in 5 days.how much will 20 boys earn in 7 days \n" ); document.write( "
Algebra.Com's Answer #462243 by rothauserc(4718)\"\" \"About 
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first calculate 900 / 15 = 60, so each boy ears rupees 60 in 5 days
\n" ); document.write( "next calculate 60 / 5 = 12, so each boy earns rupees 12 each day
\n" ); document.write( "and calculate 20 * 12 * 7 = 1680
\n" ); document.write( "our answer is 20 boys will earn rupees 1680 in 7 days
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