Math Problem Statement
一辆汽车从甲地到乙地需要4小时,如果速度每小时增加20千米,则只需3小时。求原来的速度。
Solution
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Math Problem Analysis
Mathematical Concepts
Speed, Distance, Time Problems
Linear Equations
Formulas
Distance = Speed × Time
Theorems
-
Suitable Grade Level
Grades 7-9
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