一道GRE数学题,求详解
Acertainscholarshipcommitteeawardedscholarshipsintheamountsof$1,250,$2,500,and$4,000.Thecommitteeawardedtwiceasmany$2,500scholarshipsas$4,000scholarships,anditawardedthreetimesasmany$1,250scholarshipsas$2,500scholarships.Ifatotalof$37,500wasawardedin$1,250scholarships,howmany$4,000scholarshipswereawarded?
(A)5
(B)6
(C)9
(D)10
(E)15