pawanadk7pbg6gj
pawanadk7pbg6gj pawanadk7pbg6gj
  • 08-07-2018
  • Mathematics
contestada

Three bells ring at the interval of 20 minutes, 30 minutes and 40 minutes. When will they ring together if they ring together at 9:45 am? Plz answer the question

Respuesta :

konrad509
konrad509 konrad509
  • 08-07-2018
[tex]\text{lcm}(20,30,40)=120[/tex]

So, they'll ring together again in 120 minutes.

120 min = 2 h
9:45 + 2:00 = 11:45

Answer Link
Аноним Аноним
  • 08-07-2018
The time they will ring together is given by the Lowest Common Multiple of 20, 30 and 40    which is 120 minutes

So  they'll ring together at 9.45 am + 120 minutes

=  9.45 + 2 hours  = 11.45 am Answer
Answer Link

Otras preguntas

PLEASE HELP DUE SOON!!! Jordan is mowing lawns to save money for the Camp Rodeo Field Trip. The total cost for the excursions, travel, and food will be $130. Jo
2.50 Х 35. What is the answer
i need help here pls​
What is the greatest common factor (GCF) of 16 and 24? GCF =
Menard quit his high school teaching job, which paid $60,000 per year, to start a business that prepares students for the SAT exam. His first year in business g
a printer prints 28 photos in 8 minutes how many how many photos can you print in 60 minutes
( -3) ^-5 = 1/x what is the value of x?
What division problem can be represented using the number line? A number line going from 0 to StartFraction 10 Over 3 EndFraction in increments of one-third. An
help i’m timed 6th grade math
Striated involuntary muscle tissue is classified as? A. Skeletal B. Cardiac C. Smooth D. Either Smooth or Skelatal
good job