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pratu043
 2 years ago
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?
pratu043
 2 years ago
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?

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

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

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

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

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

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

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

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

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

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

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

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

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

sauravshakya
 2 years ago
Best ResponseYou've already chosen the best response.1then 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

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

pratu043
 2 years ago
Best ResponseYou've already chosen the best response.02 hours = 2 * 60 * 60 seconds = 3600 * 2 = 7200 seconds

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

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