안녕하세요..
두 문제인데, 첫번째 문제는 문제가 이해가 되지않습니다...
두 번째 문제는 알듯말듯하다가 모르겠네여..ㅠㅠ
첫번째문제.
T is no more than 20 percent greater than the integer x, and T is no smaller than a number 20 percent
less than the integer x, if T=60, which of the following indicates the smallest possible interval for x?
답: 50 <= x <= 75
두번째 문제
Two different integers are to be selected from a set of 10 different integers in which half of the integers
are even and half are odd. How many of the 45 possible selectons consist of on even and one odd
integer?
답: 25