Question

three bells ring at regular interval of 20 minutes, 36minutes and 48 minutes respectively at what time well they ring together again next of the start simultaneously at 12 pm​

Answer 1

Answer:

To find the time they will start ringing together again, we need to find the LCM of 36,40,48.

Prime factorisation of 36=2×2×3×3

Prime factorisation of 40=2×2×2×5

Prime factorisation of 48=2×2×2×2×3

Hence, LCM of 36,40,48=2×2×2×2×3×3×5=720 seconds.

720seconds=

6

720

minutes=12minutes

Hence, the bells will ring together after 12 minutes.

Answer 2

Answer:

after 4 hr

Step-by-step explanation: