Train services $A$ and $B$ depart from the same train depot. Train service $A$ departs every $18$ mi

Question

Train services $A$ and $B$ depart from the same train depot. Train service $A$ departs every $18$ minutes and train service $B$ departs every $25$ minutes. Both train services start service and leave the depot together at $6$ am every day. How many hours would have passed for the trains to depart together again?[3] The last trains depart from the station at $10$ pm. Determine the number of times per day that both trains depart together from the train depot.[2]

Accepted Answer

(i) 7.5 hours (ii) 3 times

Train Departure Timings and Synchronisation

Train Departure Timings and Synchronisation

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