Question

A bell ring every 15 minutes.Another bell rings every 25 minutes.They ring together at 12 noon.At what time will they ring together again?​

Answer 1

Answer:

at 01:15

Step-by-step explanation:

first take lcm

3| 15,25

5| 5, 25

5| 1, 5

1, 1

so, 3×5×5 = 75

75 is 75 minutes

75 minutes is 75÷60 hour

it means 1 hour 15 min

12:00 + 1 hour 15 min is 01:15