Question

Tom has to take three medicines each day. One is to be taken

every 3 hours, one every 4 hours and one just four times a day.
He takes his first dose on Monday at 9am, what is the next time he
takes all three medicines together?

Please help​

Answer 1

Monday at 9pm

Explanation:

• The first drug is by every 9,12,3,and 6.
• The second drug is by every 9,1,and 5.
• While the third drug is by every 9 and 3.

Therefore, 9 is common so the next time the drugs will be taken at the same time is by 9pm.

Answer 2

9pm Monday

Explanation:

It would take 12 hours, that would be when all of the medicines would be taken at the same time, because 3/4/6 are factors of 12