Question

three alarm clock ring at intervals of 4,12, and 20 minutes respectively. If they start ringing together, after how much time will they next ring together ​

Answer 1

Step-by-step explanation:

Thus, we found the LCM of 4, 12 and 20 to be 2×2×3×5=60 . Hence, the three clocks will ring together after 60 minutes or 1 hour.

They will ring together next at 1 o’clock.

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.Bell 1 rings at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.Bell 1 rings at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00Bell 2 rings at 12:00, 12:15, 12:30, 12:45, 1:00

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.Bell 1 rings at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00Bell 2 rings at 12:00, 12:15, 12:30, 12:45, 1:00Bell 3 rings at 12:00, 12:20, 12:40, 1:00

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.Bell 1 rings at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00Bell 2 rings at 12:00, 12:15, 12:30, 12:45, 1:00Bell 3 rings at 12:00, 12:20, 12:40, 1:00so all three bells will ring at 1 o’clock

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.Bell 1 rings at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00Bell 2 rings at 12:00, 12:15, 12:30, 12:45, 1:00Bell 3 rings at 12:00, 12:20, 12:40, 1:00so all three bells will ring at 1 o’clockExplanation 2: the bells ring at interval of 10,15 and 20 minutes respectively.

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.Bell 1 rings at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00Bell 2 rings at 12:00, 12:15, 12:30, 12:45, 1:00Bell 3 rings at 12:00, 12:20, 12:40, 1:00so all three bells will ring at 1 o’clockExplanation 2: the bells ring at interval of 10,15 and 20 minutes respectively.The LCM of 10, 15 and 20 is 60

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.Bell 1 rings at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00Bell 2 rings at 12:00, 12:15, 12:30, 12:45, 1:00Bell 3 rings at 12:00, 12:20, 12:40, 1:00so all three bells will ring at 1 o’clockExplanation 2: the bells ring at interval of 10,15 and 20 minutes respectively.The LCM of 10, 15 and 20 is 60i.e the bells will ring together after 60 minutes which

They will ring together next at 1 o’clock.Explanation 1 : bells rings at intervals of 10, 15 and 20 minutes respectively.Bell 1 rings at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00Bell 2 rings at 12:00, 12:15, 12:30, 12:45, 1:00Bell 3 rings at 12:00, 12:20, 12:40, 1:00so all three bells will ring at 1 o’clockExplanation 2: the bells ring at interval of 10,15 and 20 minutes respectively.The LCM of 10, 15 and 20 is 60i.e the bells will ring together after 60 minutes which1 o’clock.

Answer 2

Answer:

|| ✰ᴀɴsᴡᴇʀ✰ ||

➺ Given that,

The three alarm clock rings at interval of 4,12 and 20 minutes respectively.

➺ So, The clock will rings together again at the L.C.M of 4,12 and 20.

=> L.C.M of 4,12 and 20

=> 4×1×3×5

=> 60

➺ Hence, the clock ring together after 60 minutes.

|| ♛ᴍɪss_ɪɴɴᴏᴄᴇɴᴛ♛ ||