Marcy is taking two types of medicine. She takes one medicine every 6 hours. She takes the other medicine every 4 hours. She takes both medicines at 9am. At what time will Marcy take both medicines together again?

Question

Mathematics

Keon Pacheco

29 September, 13:41

Marcy is taking two types of medicine. She takes one medicine every 6 hours. She takes the other medicine every 4 hours. She takes both medicines at 9am. At what time will Marcy take both medicines together again?

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Answers (2)

Know the Answer?

Ben Ayers · Answer 1

The answer is 9 pm

6 hour x 2 is 12 hours

4 hours x 3 is 12 hours

9 am + 12 hours is 9pm

Jan Ibarra · Answer 2

At 9:00 P. M.

Step-by-step explanation:

Marcy is taking two types of medicine.

One medicine every 6 hours and other medicine every 4 hours.

She takes both medicines at 9 a. m. now we have to calculate the time at which Marcy take both medicines together again.

We will calculate Lowest common multiple (LCM) of 6 and 4.

LCM of 6, 4 = 2 * 2 * 3 = 12

After 12 hours 9 A. M. = 9 P. M.

After 12 hours at 9 P. M. she will take both medicines together again.