Question

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Four bell rings at the interval of 4, 7, 12 and 84 seconds respectively. If they start ringing together at 7 o’clock , when will they ring together ?​
Explain step by step!!
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Answer 1

Answer:

They will toll together for a 'common multiple' of (4,7,12,84), which is the l.c.m of these numbers. In 28 mins they toll (together) 20 times. Hope it helps

Answer 2

Answer:

hey what's up moon girls

nice name really

Step-by-step explanation:

Optical isomers are two compounds which contain the same number and kinds of atoms, and bonds (i.e., the connectivity between atoms is the same), and different spatial arrangements of the atoms, but which have non-superimposable mirror images. Each non-superimposable mirror image structure is called an enantiomer.