题目内容
a+0.5=b-0.5=c×0.5(a、b、c均大于0),a、b、c、这三个数中最大的是( )
分析:假设a+0.5=b-0.5=c×0.5=1,求出相应的a、b、c的值,即可比较出谁最大.
解答:解:假设a+0.5=b-0.5=c×0.5=1,
则a+0.5=1,a=0.5,
b-0.5=1,b=1.5,
c×0.5=1,c=2,
所以c最大;
故选:C.
则a+0.5=1,a=0.5,
b-0.5=1,b=1.5,
c×0.5=1,c=2,
所以c最大;
故选:C.
点评:解答此题的关键是:先设整个式子等于1,再分别求出a、b、c的值,即可比较大小.
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