Question

Answer plz fast I WILL MARK AS BRAINLIEST HURRY UP PLZ ​

Answer 1

$<b><marquee behavior= "alternate">Heya!! </marquee>$

$<marquee behavior=move bgcolor=yellow> <h1> I AM HERE WITH ANSWER TO YOUR QUERIES! ❤</h1></marquee>$

LCM of 2, 4, 6, 8 10 and 12 is 120.

So, after each 120 seconds, they would toll together.

Hence, in 30 minutes, they would toll 30*60 seconds / 120 seconds = 15 times

But then the question says they commence tolling together. So, they basically also toll at the "beginning" ("0" second).

So, total tolls together = 15+1 = 16

So, answer is 16 times

$<marquee behavior=move bgcolor=pink> <h1> Follow me ❤</h1></marquee>$

Answer 2

Sox bells commence at intervals of

2, 4,6,8,10,12 minutes.

To find how many times they will commence together in 30hrs, we have to first find the LCM of these intervals.

LCM = 120

So, they will commence together in every 120 minutes or 2 hrs.

So,

They will toll together

=> 30/2 = 15 times in 30 hrs.

and yes,
Since they were commencing together already, so, they will toll 15+1 that is 16 times in 30 hrs.

Cheers!!