Angelina walked 960 meters from her home to the grocery at a constant speed.

Angelina walked 960 meters from her home to the grocery at a constant speed. She then walked 480 meters to the gym at double the speed. She spent 40 seconds less on her way from the grocery to the gym than on her way from home to the grocery. What was Angelina's speed, in meters per second, from the grocery to the gym?

Quiz

Answer/Solution

36

Steps/Work

let the speed be X...
so time taken from home to grocery= 960/x..
the speed to gym = 2x..
so time taken = 480/2x=240/x..
its given 960/x-240/x=40..
720/x=40..
x=18m/secs..
so grocery to gym=2*18=36m/s...
D

Physics Calculator / Auto Solver

Angelina walked meters from her home to the grocery at a constant speed. She then walked meters to the gym at double the speed. She spent seconds less on her way from the grocery to the gym than on her way from home to the grocery. What was angelina's speed, in meters per second, from the grocery to the gym?

Calculated Answer

36

Step by Step Solution

In order to solve problem, you must evaluate (n0 - n1 / 2) / n2 * 2.

n0 =960
n1 =480
n2 =40