SOLUTION: A and B are playing tag . A stay still while B runs from the same spot at a rate 2 meters per second. After 60 seconds B keeps running . A now runs after him at a rate of 3 meters

Question 975870: A and B are playing tag . A stay still while B runs from the same spot at a rate 2 meters per second. After 60 seconds B keeps running . A now runs after him at a rate of 3 meters per second. How long has A run when he caught up to B
My solution
3 (t-60) = 2t
3t - 180 =2t
3t-2t =180
t = 180
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
A and B are playing tag . A stay still while B runs from the same spot at a rate 2 meters per second. After 60 seconds B keeps running . A now runs after him at a rate of 3 meters per second. How long has A run when he caught up to B
My solution
3 (t-60) = 2t
3t - 180 =2t
3t-2t =180
t = 180
***
After 60 seconds, B has covered a distance=2*60=120 m
3-2=1 m/sec=rate at which A is catching up to B
A's travel time=120/1=120 seconds
How long has A run when he caught up to B? 120 seconds
RELATED QUESTIONS
Runner A runs at a rate of 10.93 seconds for 100 meters. Runner B runs at a rate of... (answered by ankor@dixie-net.com)

Sprinter A runs 100 meters in 15 seconds, while sprinter B starts 1.5 seconds later and... (answered by ankor@dixie-net.com)

Track: Sprinter A runs 100 meters in 15 seconds, while sprinter B starts 1.5 seconds... (answered by ankor@dixie-net.com)

Sprinter A runs 100 meters in 15 seconds, while sprinter B starts 1.5 seconds later and... (answered by TimothyLamb)

A hot-air balloon 70 meters above the ground is falling at a constant rate of 6 meters... (answered by drk,stanbon)

Sprinter A runs 100 meter in 15seconds, while sprinter B starts 1.5 second later and runs (answered by TimothyLamb)

Three wheels make 60, 36 and 24 revolutions per minute. Each has a red spot on its rim,... (answered by jim_thompson5910)

A and B start running from the same point and along the same direction on a circular... (answered by Boreal)

An athlete runs from A to B and back, at a speed of 10 kmph, while a second athlete... (answered by ankor@dixie-net.com)