The two trains...... at what speed ?

Algebra Level 2

Imagine two trains naming Water and Fire..

Water starts from station A to station B at 45 mph and fire starts from station B to station A at x mph at same time.

After meeting at a place between stations A and B Water reaches to station B after 4 hr 48 min. and fire reaches to station A after 3 hr 20 min. after meeting.

then what is the speed of Fire ?


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