[計量] pp3一題
看不懂後半段再說甚麼...
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
of x?
A 40<=X<=80
B 48<=X<=75
C 48<=X<=72
D 50<=X<=78
E 50<=X<=75
以上都是大於等於 和小於等於 只是符號打不出來...
答案是E
麻煩大家了 謝謝!!!!
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※ 編輯: nyyfan0325 來自: 140.112.4.183 (04/03 14:52)
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