contestada

if a string of red holiday lights blinks once every 3 seconds while a string of blue lights blink once every 4 seconds. how many times both sets of lights blink at the same time in 1 minutes?

Respuesta :

theshammy123
5 times
the lcm of 3 and 4 is 12
1 minute = 60 seconds
60 divided by 12 is 5

Otras preguntas