the average of n consecutive integers beginning with 1 is 12 Quantity A: n Quantity B: 24

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问题 the average of n consecutive integers beginning with 1 is 12
Quantity A: n
Quantity B: 24

选项 A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.

答案B

解析利用等差数列的求和公式，那么S=12n=n(n+1)/2，n=23，选择B。

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本试题收录于： GRE QUANTITATIVE题库GRE分类

GRE QUANTITATIVE

GRE

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the average of n consecutive integers beginning with 1 is 12 Quantity A: n Quantity B: 24

GRE QUANTITATIVE

GRE

It’scommonknowledgethattoday’sworkplaceismorevolatile(易变的)thanitoncewas.Onehastoknowhowtomakethenecessary

Breastfeeding(母乳喂养)foramonthorlongerappearstoreduceawoman’sriskofgettingdiabetes(糖尿病)laterinlife,accordingto

Sheisvery______toringmetonight.Icansensethat.

Thewaypeopleholdtothebeliefthatafunfilled,painfreelifeequalshappinessactuallyreducestheirchancesofeveratta

HarrietBeecherStowehadpouredherheartintoheranti-slaverybook,UncleTom’sCabin.Butneithershenorherfirstpublish

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Evenifparentsnolongerlivetogether,theyeachcontinuetobe____________fortheirchildrenintheeyeofthelaw.

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