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Six bells commence tolling to gether and toll at intervals 2,4,6,8,10 and 12 seconds respectively. In 30 minutes how many times they toll together.
Read Solution (Total 3)
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- Lcm of 2,4,6,8,10,12 is 120
120 sec ie. 2min.
30/2 = 15.
15+1 = 16 (+1 because bells tolls together for the first time in 1st sec of 1st minute)
Ans = 16 - 8 years agoHelpfull: Yes(11) No(0)
- 20 Take LCM of all the values and then divide
- 8 years agoHelpfull: Yes(0) No(0)
- take LCM of all the numbers which is 120
so all the bells rings at one time once for every 120 seconds which means 2 minutes
so in 30 minutes they will ring for 15 times - 7 years agoHelpfull: Yes(0) No(3)
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