6 bells commence tolling together n toll at intervakl 2,4,6,8,10,12 sec in 30 minutes .in how many times they toll together

• first time they toll together at 0th second
  lcm of 2,4,6,8,10,12 is 120
  means they toll together for each 120 seconds there after;
  30 minutes=30*60=1800 seconds
  1800/120=15
  i.e 15 such intervals are possible
  adding the 0th sec, total 16 times they toll together in 30 min
• 10 years agoHelpfull: Yes(25) No(0)
• between 2 to 30 there r 15 intervals 15+1(zeroth second)=16times
• 10 years agoHelpfull: Yes(9) No(0)
• 1min=60sec's
  30mins=30*60=1800 sec's
  the lcm of 2,4,6,8,10,12=120
  1800/120=15
  i.e, 15 such intervals are possible + 0th sec interval also they commence together
  =15+1=16 times they toll together in 30 mins
  
• 10 years agoHelpfull: Yes(3) No(0)
• can any one please explain clearly why 15 intervals came and y u ppl took lcm?
• 10 years agoHelpfull: Yes(0) No(0)
• 16 is the right ans
• 7 years agoHelpfull: Yes(0) No(0)
• Is the right ans 15+1=16
• 3 years agoHelpfull: Yes(0) No(0)