<ARTICLE>                                            6


<F1> This item relates to the Fund on a composite
     basis and not on a class basis



   <NUMBER>                                         12
   <NAME>                               RESERVE FUND B
<MULTIPLIER>                                         1

                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-2000
<PERIOD-START>                             JUN-01-1999
<PERIOD-END>                               MAY-31-2000
<INVESTMENTS-AT-COST>                      766,287,660 
<INVESTMENTS-AT-VALUE>                     766,287,660 
<RECEIVABLES>                              112,142,892 
<ASSETS-OTHER>                                  75,504 
<OTHER-ITEMS-ASSETS>                                 0 
<TOTAL-ASSETS>                             878,506,056 
<PAYABLE-FOR-SECURITIES>                             0 
<SENIOR-LONG-TERM-DEBT>                              0 
<OTHER-ITEMS-LIABILITIES>                   11,702,870 
<TOTAL-LIABILITIES>                         11,702,870 
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   238,852,191
<SHARES-COMMON-STOCK>                      238,842,750
<SHARES-COMMON-PRIOR>                      129,788,943
<ACCUMULATED-NII-CURRENT>                        2,508 
<OVERDISTRIBUTION-NII>                               0 
<ACCUMULATED-NET-GAINS>                        (64,896)
<OVERDISTRIBUTION-GAINS>                             0 
<ACCUM-APPREC-OR-DEPREC>                             0 
<NET-ASSETS>                               238,838,956
<DIVIDEND-INCOME>                                    0 
<INTEREST-INCOME>                           51,966,920 
<OTHER-INCOME>                                       0 
<EXPENSES-NET>                              (9,492,577)
<NET-INVESTMENT-INCOME>                     42,474,343 
<REALIZED-GAINS-CURRENT>                        (2,832)
<APPREC-INCREASE-CURRENT>                            0 
<NET-CHANGE-FROM-OPS>                       42,471,511 
<EQUALIZATION>                                       0 
<DISTRIBUTIONS-OF-INCOME>                   (8,191,882)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                  1,333,924,471
<NUMBER-OF-SHARES-REDEEMED>             (1,232,117,711)
<SHARES-REINVESTED>                          7,247,047
<NET-CHANGE-IN-ASSETS>                     109,051,472
<ACCUMULATED-NII-PRIOR>                         43,171 
<ACCUMULATED-GAINS-PRIOR>                      (62,064)
<OVERDISTRIB-NII-PRIOR>                              0 
<OVERDIST-NET-GAINS-PRIOR>                           0 
<GROSS-ADVISORY-FEES>                        3,651,499 
<INTEREST-EXPENSE>                                   0 
<GROSS-EXPENSE>                              9,573,059 
<AVERAGE-NET-ASSETS>                       200,830,069
<PER-SHARE-NAV-BEGIN>                            1.000
<PER-SHARE-NII>                                  0.041
<PER-SHARE-GAIN-APPREC>                          0.000
<PER-SHARE-DIVIDEND>                            (0.041)
<PER-SHARE-DISTRIBUTIONS>                        0.000
<RETURNS-OF-CAPITAL>                             0.000
<PER-SHARE-NAV-END>                              1.000
<EXPENSE-RATIO>                                   1.57