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pratu043
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Four bells first begin to toll together and then at intervals of 6, 7, 8 and 9 seconds respectively. Find how many times the bells toll together in two hours and at what intervals they toll together?
 2 years ago
 2 years ago
pratu043 Group Title
Four bells first begin to toll together and then at intervals of 6, 7, 8 and 9 seconds respectively. Find how many times the bells toll together in two hours and at what intervals they toll together?
 2 years ago
 2 years ago

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sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
First find L.C.M of 6,7,8 and9
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
Are u sure
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
ya... thats right
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
So, the four bells will ring afer 540 seconds all together
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
got it?
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
now, 2 hour =  seconds
 2 years ago

pratu043 Group TitleBest ResponseYou've already chosen the best response.0
But it says they ring together at intervals of 6, 7, 8, 9 seconds.
 2 years ago

pratu043 Group TitleBest ResponseYou've already chosen the best response.0
So what have these numbers got to do with 504?
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
Since the Four bells first begin to toll together and then at intervals of 6, 7, 8 and 9 seconds respectively
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
they will ring together after 540 seconds now
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
PLZ read the question carefully
 2 years ago

pratu043 Group TitleBest ResponseYou've already chosen the best response.0
So after that nine seconds, they will ring together after 504 seconds?
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
nope.....
 2 years ago

pratu043 Group TitleBest ResponseYou've already chosen the best response.0
Lets say they ring together first at 6.00.00. Then at 6.00.06 6.00.07 6.00.08 6.00.09 right?
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
nope.....
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
Let me first expalin the question
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
there are four bellsdw:1344785837617:dw
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
which ring together at first
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
then BELL A rings after 6 seconds, BELL B rings after 7 seconds , BELL C rings after 8 seconds and BELL D rings after 9 seconds
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
got it?
 2 years ago

pratu043 Group TitleBest ResponseYou've already chosen the best response.0
yep i got it now.
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
so what do u think 540seconds means
 2 years ago

pratu043 Group TitleBest ResponseYou've already chosen the best response.0
2 hours = 2 * 60 * 60 seconds = 3600 * 2 = 7200 seconds
 2 years ago

pratu043 Group TitleBest ResponseYou've already chosen the best response.0
The three bells will ring TOGETHER every 504 seconds right?
 2 years ago

pratu043 Group TitleBest ResponseYou've already chosen the best response.0
OK, I know how to do it now. Thanks!!
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.1
WELCOMX
 2 years ago
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