字典翻译 问答 高中 数学 一道GRE数学题,求详解Acertainscholarshipcommitteeawardedscholarshipsintheamountsof$1,250,$2,500,and$4,000.Thecommitteeawardedtwiceasmany$2,500scholarshipsas$4,000scholarships,anditawardedthreetimesasmany$1,250schol
问题标题:
一道GRE数学题,求详解Acertainscholarshipcommitteeawardedscholarshipsintheamountsof$1,250,$2,500,and$4,000.Thecommitteeawardedtwiceasmany$2,500scholarshipsas$4,000scholarships,anditawardedthreetimesasmany$1,250schol
问题描述:

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

宋文敏回答:
  答案选A,题目的意思是,1250的授奖次数是2500的三倍,2500的授奖次数是4000的二倍,已知条件是1250授奖总金额37500,也就是授奖30次,那么可以推算出2500是10次,4000是5次.
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