请教一种DS类型题目

ChessyG · 发表于 2016-12-7 07:15:14

At Larry's Auto Supply Store, Brand X antifreeze is sold by the gallon and Brand Y motor oil is sold by the quart Excluding sales tax, what is the total cost for 1 gallon of Brand X antifreeze and 1 quart of Brand Y motor oil?

(1)Excluding sales tax, the total cost for 6 gallons of Brand X antifreeze and 10 quarts of Brand Y motor oil is $58. (There is no quantity discount.)

(2)Excluding sales tax, the total cost for 4 gallons of Brand X antifreeze and 12 quarts of Brand Y motor oil is $44. (There is no quantity discount.)

AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
CBOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
DEACH statement ALONE is sufficient.
EStatements (1) and (2) TOGETHER are NOT sufficient.

OA: C，其实关于这道题目我没有问题，只是想问一下各位大神，同类型的问题若条件一，二联立可以得出结论是无解，是否算作sufficient 呢？以及为什么？我记得kkk的周帆老师讲过，关于what's the value..类型若求出多个解是Insufficient因为不能唯一确定，那么若是确定无解呢？是否同理为Insufficient？

[原始] 请教一种DS类型题目

所属分类: GMAT考试

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