Problema Solution
Xylem and Phloem had an argument that ended at 2:25 p.m.. After 10 minutes, Xylem walked away to have some space for herself, with a speed of 2 meters per second. After 20 mins, Phloem followed her to say sorry and ran with a speed of 4 meters per second. At what time will Phloem catch up with Xylem?
Answer provided by our tutors
Xylem walked away at time 2:35
after 20 min distance between Xylem and Phloem is 2 * 20 * 60 = 2400 meters.
relative to xylem , now phloem is running with speed = 2 m/s
so the time taken = 2400/2 = 1200 sec = 20min.