(1-40%)×(1-40%),
=60%×60%,
=36%;
故选:C.
一杯牛奶喝去40%以后,加满水搅拌,再喝去40%,这时杯中牛奶还剩( ) A.40% B.60% C.36% D.20%
一杯牛奶喝去40%以后,加满水搅拌,再喝去40%,这时杯中牛奶还剩( )
A. 40%
B. 60%
C. 36%
D. 20%
A. 40%
B. 60%
C. 36%
D. 20%
数学人气:255 ℃时间:2019-10-17 06:33:38
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