"A bell rings every 2 hours, a second bell rings every 3 hours, and a third bell rings every 4 hours. If all 3 bells ring at 9:00 AM., at what time will all 3 bells next ring?"
watch and be amazed as i sit here all day calculating this
I DON'T WANNA HIT "VIEW ANSWER" UNTIL I THINK I'VE GOT IT
I wanna say it's going to be about 1pm but the language of the problem seems like a trap
1PM isn't one of the choices. It's either noon, 9PM, 6PM, 10PM, or "not enough information is given"
at least that's what I solved <.<?
I feel like it should be 9PM?
But that seems like it's too easy. Like, all of them divide cleanly into 12, but not at the same rate. So, eventually they should probably ring again together at 9PM
cause the only number divisible by all three numbers is 12
but idk if that'll be the next time. And I think I've calculated a month's worth of days trying to work this out manually.
that's the lowest one... and 9pm is 12 hours after the first bell
It's probably 9PM or noon. . . . I WANNA KEEP WORKING AT IT TO SEE IF I CAN HIT IT MANUALLY but if I fill this page with numbers first I'll just go with 9PM and see if it's right lol
I've already filled about half a page after all ukjuhfkua
(the closest I've hit, for the record, is the first and last bell ring together on one 9AM, but the middle bell rings at 9PM (屮 )屮 彡 ┻━┻
(ノ・_・)ノ 彡 ┻━┻
do you have to follow a certain formula?
:|a No? All that was given was what I put in the initial plurk. I'm just going from 9AM and adding each number on a separate line.
Like:
9+2=11=113=15
9+3=12=15=18
9+4=13=17=21
etcetc
and that formula your using is right
you just have to continue the first two lines
which is taking forever lol the first rule we're gievn when practicing tests like this is "don't take more than a minute on a problem" but I've been at this for at least 10.
Well we're not trying to get to 21, we're trying to see at what point they all make the same number again :|a
Yep! . . .WAIT WOW I FEEL DUMB
after 6 rings, the first bell hits 9pm
i worked way too hard for an answer that's right in my face lik ethat
after 4 rings the 2nd bell hits 9pm... and after 3 rings, 3rd bell hits 9pm
Yeah but not with the others. What we're solving for is all the bells ringing at once lol
well yeah, at 9pm, all 3 will ring
But if the only times they have in common, if not together, is 9 and 21/9pm. /o\ Duh self duh
yep, that's the only time
because the only think you can divide by all three numbers would be 12
so it would only happen every 12 hours
I also got 9 pm. Your reasoning makes sense on top of it, you two.
if four bells ring in the tower of bray...
I hope you guys get the right answer!
/will not touch that problem unless promised due reward lol
yeah, I tried to solve it... nerdy otousan