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一种收音机每台售价今年比去年降低25%,今年每台售价36元,去年每台售价多少元?
人气:257 ℃ 时间:2020-04-06 09:03:14
解答
36÷(1-25%),
=36÷75%,
=36÷0.75,
=48(元);
答:去年每台售价48元.
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