3 bells are ringing at intervals of 30, 36 ,45 minute .at what time will they rang together again if they ring simultaneously at 8 a. M.
Answers
Answered by
1
we will take LCM in this case
LCM of 30,36,45;
30=2 × 5 × 3
36=2 × 2 × 3 × 3
45=5 × 3 × 3
LCM=2 × 5 × 3 × 2 × 2 × 3 × 5 × 3
=5400
So they will ring together after 5400 minutes
Therefore the answer is 90 hours more than 8 a m
LCM of 30,36,45;
30=2 × 5 × 3
36=2 × 2 × 3 × 3
45=5 × 3 × 3
LCM=2 × 5 × 3 × 2 × 2 × 3 × 5 × 3
=5400
So they will ring together after 5400 minutes
Therefore the answer is 90 hours more than 8 a m
Similar questions