In 2004, Cindy had $4000 in a mutual fund account. In 2005, the amount in the same account was $5000. If the percent increase from 2004 to 2005 was the same as the percent increase from 2005 to 2006, how much did Cindy have in this account in 2006?
                    
                
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                A$5800
                            
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                B$6000
                            
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                C$6250
                            
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                D$7500
                            
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                E$9000
                            
显示答案
        正确答案: C