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  <xs:element id="bah_ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassTable" abstract="true" name="ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="bah_DefinedBenefitPlanUltimateHealthCareCostTrendRatePost65" abstract="false" name="DefinedBenefitPlanUltimateHealthCareCostTrendRatePost65" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
</xs:schema>
