2023年備考GMAT數(shù)學(xué)練習(xí)題

2023年備考GMAT數(shù)學(xué)練習(xí)題Thereare8magazineslyingonatable;4arefashionmagazinesandtheother4aresportsmagazines.If3magazinesaretobeselectedatrandomfromthe8magazines,whatistheprobabilitythatatleastoneofthefashionmagazineswillbeselected?

A.1/2

B.2/3

C.32/35

D.11/12

E.13/14

答案

參考答案：E

題目翻譯：桌子上八本雜志，四本時(shí)尚四本體育。隨機(jī)三本，至少一本時(shí)尚的幾率。

題目全解：1減去一本時(shí)尚沒有的幾率=1-(4/8)*(3/7)*(2/6)=13/14。

GMAT數(shù)學(xué)練習(xí)題二

Isthesumofp^2andq^2greaterthan1?

(1)pisgreaterthan1/2.

(2)qisgreaterthan1/2.

A.Statement(1)ALONEissufficient,butstatement(2)aloneisnotsufficient.

B.Statement(2)ALONEissufficient,butstatement(1)aloneisnotsufficient.

C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.

D.EACHstatementALONEissufficient.

E.Statements(1)and(2)TOGETHERareNOTsufficient.

答案

參考答案：E

題目翻譯：p方加q方大于一嗎?

題目全解：P大于2分之1，p方大于4分之一;q大于2分之1，q方大于4分之一，p方加q方就大于2分之一，可比一大可比一小。一二條件獨(dú)立也同理，選E.

GMAT數(shù)學(xué)練習(xí)題三

WhatisthemediannumberofemployeesassignedperprojectfortheprojectsatCompanyZ?

(1)25percentoftheprojectsatCompanyZhave4ormoreemployeesassignedtoeachproject.

(2)35percentoftheprojectsatCompanyZhave2orfeweremployeesassignedtoeachproject.

A.Statement(1)ALONEissufficient,butstatement(2)aloneisnotsufficient.

B.Statement(2)ALONEissufficient,butstatement(1)aloneisnotsufficient.

C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.

D.EACHstatementALONEissufficient.

E.Statements(1)and(2)TOGETHERareNOTsufficient.

答案

參考答案：C

題目翻譯：公司Z，做工程的員工的中位數(shù)是幾?

題目全解：(1)25percentoftheprojectsatCompanyZhave4ormoreemployeesassignedtoeachproject.Notsufficientonitsown.

(2)35percentoftheprojectsatCompanyZhave2orfeweremployeesassignedtoeachproject.Notsufficientonitsown.

(1)+(2)Since35%ofoftheprojectshave2orfeweremployeesand25%oftheprojectshave4ormoreemployees,then100%-(25%+35%)=40%oftheprojectshaveexactly3employeesassignedtoeachofthem.So,themediannumberofemployeesassignedperprojectis3.Sufficient.

GMAT數(shù)學(xué)練習(xí)題四

Whatisthesumoftheintegersfrom-190to195,inclusive?

A.0

B.5

C.