Math Problem Statement
First 20 km at a speed of 17 km/h and second 20 km at a speed of 23 km/h ,what is the average speed of total journey?
Solution
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Math Problem Analysis
Mathematical Concepts
Average Speed
Distance-Time Relationship
Arithmetic Operations
Formulas
Average Speed = Total Distance / Total Time
Time = Distance / Speed
Theorems
Basic principles of kinematics
Suitable Grade Level
Grades 8-10