.
1 tsp (one teaspoon) = 4.92892 milliliters.
= 12.173 times to take.
Rounded, it is 12 times to take.
12 times to take cover 12*8 = 96 hours.
(It means that the medication will work 96 hours
from the starting moment to the last time moment when the medication stop acting).
96 hours is 96/24 = 4 days.
So, 60 mL is the 4 days supply. ANSWER
Solved.
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It is a good problem for 4th - 5th - 6th grade young students, although poorly formulated.
Such problems teach young students to think logically and to calculate accurately,
and give them sense of time.