问题标题:
求教一道GMAT数学题.Joannaboughtonly$0.15stampsand$0.29stamps.Howmany$0.15stampsdidshebuy?(1)x05Shebought$4.40worthofstamps.(2)x05Sheboughtanequalnumberof$0.15stampsand$0.29stamps.x05A.Statement(1)ALONEissuf
问题描述:

求教一道GMAT数学题.

Joannaboughtonly$0.15stampsand$0.29stamps.Howmany$0.15stampsdidshebuy?

(1)x05Shebought$4.40worthofstamps.

(2)x05Sheboughtanequalnumberof$0.15stampsand$0.29stamps.

x05

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.

李明强回答:
  由条件(1)可求二者数量都是10张   条件(2)却不可以   所以选择A
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《求教一道GMAT数学题.Joannaboughtonly$0.15stampsand$0.29stamps.Howmany$0.15stampsdidshebuy?(1)x05Shebought$4.40worthofstamps.(2)x05Sheboughtanequalnumberof$0.15stampsand$0.29stamps.x05A.Statement(1)ALONEissuf|高中数学问答-字典翻译问答网》
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