Question

A bell rings at every 18 seconds, another bell rings at every 60 seconds. If these two bells rings simulteneously a an instant, then find after how many seconds will the bells rings simultenously again

Answer 1

Answer:

After 180 seconds .

Step-by-step explanation:

1st bell rings after=18 seconds

2nd bell rings after=60 seconds

LCM if 18 and 60=180

Answer 2

Step-by-step explanation:

• So a bell rings at every 18 seconds and another bell rings at every 60 seconds.
• So if the two bells rings at a time then we need to find after how many seconds the bell rings at a time once again.
• So the bells will ring simultaneously again after the LCM of 18 and 60 seconds. So we get
•                         2      18       60
•                         2        9       30
•                          3        9       15
•                                    3        5
•   So we have  2 x 2 x 3 x 3 x 5 = 180 seconds
• Therefore both the bell will ring at a time after 180 seconds or 3 minutes.

Reference link will be

https://brainly.in/question/12735626