神马作文网gwd数学第24套第9题,为什么选A不是选D?
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gwd数学第24套第9题,为什么选A不是选D?
The operation* represents either addition,subtraction,or multiplication of integers,what is the value of 1*0?
(1) 0*2=2
(2) 2*0=2
A Statement (1) ALONE is sufficient,but statement (2) alone is not sufficient
B Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient
C BOTH statements TOGETHER are sufficient,but NEITHER statement ALONE is sufficient.
D EACH statement ALONE is sufficient
E Statements (1) and (2) TOGETHER are NOT sufficient
B的话,星号可以代表加或减吧,无论加减题目算出来不都是1么?
The operation* represents either addition,subtraction,or multiplication of integers,what is the value of 1*0?
(1) 0*2=2
(2) 2*0=2
A Statement (1) ALONE is sufficient,but statement (2) alone is not sufficient
B Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient
C BOTH statements TOGETHER are sufficient,but NEITHER statement ALONE is sufficient.
D EACH statement ALONE is sufficient
E Statements (1) and (2) TOGETHER are NOT sufficient
B的话,星号可以代表加或减吧,无论加减题目算出来不都是1么?
first lets make sure whats the question is asked,it asked to u to deduct the meaning of *.
we can know from the question that the* means either addition,subtraction,or multiplication.
lets see 1,0*2=2,the * must be addition to achieve the result.sufficient.
2.2*0=2.the* can either be addition or subtraction,insufficient.
to answer your doubt,the question said the * can only be one of the algorithm mentioned above,hence 2 is not sufficient enough to answer that.
hope it helps.
good luck.
we can know from the question that the* means either addition,subtraction,or multiplication.
lets see 1,0*2=2,the * must be addition to achieve the result.sufficient.
2.2*0=2.the* can either be addition or subtraction,insufficient.
to answer your doubt,the question said the * can only be one of the algorithm mentioned above,hence 2 is not sufficient enough to answer that.
hope it helps.
good luck.