Algebra.Com's Answer #796674 by ikleyn(52785)![\"\"](\"/images/stars/stars-13.gif\")  
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document.write( "20 men can dig a tank 40 feet long and 30 feet broad and 10 feet deep in 25 days.
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document.write( "In how many days will 60 men dig a tank 90 feet long, 60 feet broad and 20 feet deep?
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document.write( "In first scenario, the volume of the tank is 40*30*10 = 12000 cubic feet.\r\n" );
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document.write( "and the rate of work is  = 24 cubic feet per day per man.\r\n" );
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document.write( "In second scenario, the volume of the tank is 90*60*20 = 108000 cubic feet.\r\n" );
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document.write( "and the rate of work is  =  cubic feet per day per man, where x is an unknown number of days.\r\n" );
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document.write( "Assuming that the rate of work is the same in both scenarios, we have this equation\r\n" );
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document.write( " 24 = ,\r\n" );
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document.write( "which implies x =  = 75 days. ANSWER\r\n" );
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document.write( "Solved.\r
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