Question

Robert is in hospital he takes a pill every 6 hour he has some medicine every 8 hour he has an injection every 12 hours at 08:00 on 10th July Robert took a pill had some medicine and an injection at what date and time will Robert again have all three together

Answer 1

0800 11th July.

Explanation:

We need to find the Lest Common Multiple (LCM) of 6, 8 and 12.

8 is not a divisor of the largest number 12 so we multiply:

12 *2 = 24.

Both 6 and 8 are divisors of 24 so this is the required LCM

So, we add 24 hours to 0800 10 July which gives us

0800 11th July.