Question

Three clocks ring once at the same time. After that, the first clock rings after every 3 hours, the second after every 4 hours, and third after every 5 hours. After how many hours will they again ring together?


Select one:
a. 48 hours
b. 15 hours
c. 24 hours
d. 60 hours

Answer 1

Answer:

60 hours

Step-by-step explanation:

take LCM of 4 , 3 and 5