5 bells begin toll together at intervels of 9s,6s,4s,10s ,8s respectively .how many times will they ring in 1hr
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1hour has 3600 seconds
so 1st bell rings 3600/9 = 400 times
like wise 2nd bell rings 600times
3rd bell 900 times
4th bell 360 times
5th bell 450 times
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