In traveling from a dormitory to a certain city, a student went 1/5 of the way by foot, 2/3 of the ...
In traveling from a dormitory to a certain city, a student went 1/5 of the way by foot, 2/3 of the way by bus, and the remaining 10 kilometers by car. What is the distance, in kilometers, from the dormitory to the city?
Answer/Solution
75
Steps/Work
Whole trip = distance by foot + distance by bus + distance by car
x = 1/5x + 2/3x + 10
x - 13/15x = 10
2/15x = 10=> so x = (15/2)*10 = 75Km
Answer D
x = 1/5x + 2/3x + 10
x - 13/15x = 10
2/15x = 10=> so x = (15/2)*10 = 75Km
Answer D