一辆汽车从甲地开往乙地,去时用了10小时,返回时用了8小时,速度提高了______%.
人气:446 ℃ 时间:2019-09-28 09:15:29
解答
(
−)
÷×100%,
=
÷×100%,
=
×100%,
=25%,
答:速度提高了25%,
故答案为:25.
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