[数学]QR-12hi2j猴哥难题

[数学]QR-52hi3j猴哥难题

How many 4-digit numbers begin with an odd digit and end with an even digit ?

[数学]QR-32hi4j猴哥难题

If the sum of four consecutive even integers is 340,then the average of the two larger integers is

[数学]QR-c2hhwj猴哥难题

The odds that a certain event will occur is the ratio of the probability that the event will occur to the probability that it will n...

[数学]QR-22hhnj猴哥难题

If x + 2y = 2 and (x+y)^2 =9,which of the following is a possible value of y ?

[数学]QR-c2hhoj猴哥难题

In what month was gas use in one of the years nearly double that for the same month in the other year ?

[数学]QR-e2hhpj猴哥难题

If N is an integer and 99<N^2<200,then N could have at most how many values?

[数学]QR-e2hhqj猴哥难题

If one number is chosen at random from the first 1,000 positive integers,what is the probability that the number chosen is a multipl...

[数学]QR-32hhtj猴哥难题

A certain doctor suggests that an individuall's daily water intake be 1/2 ounce per pound of body weight plus 8 ounces for every 25 ...

[数学]QR-42hhuj猴哥难题

For how many of the countries shown was the savings rate more than 5 times the real GNP growth rate ?

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