Question

The line A bus arrives at the stop every 25 min. and the line B bus arrives every 15 min. Both arrive at the bus stop at 1 pm. At what time will both be at the bus stop again?

Answer 1

Let's find the least common multiple of 25 and 15.Which is 75

75 min * 1h/60min = 1.25 h

In other words, the buses will arrive at the same time at the stop, 1 hour and 15 minutes later.

1 pm + 1:15 = 2:15 pm