Bunuel wrote:
Jackie has a prescription for 100 pills to be taken, one every 8 hours, at 7 a.m., 3 p.m., and 11 p.m. each day. If she takes the first pill at 3 p.m. on July 1, when should she take the last pill in the prescription?
A. August 1 at 11 p.m.
B. August 2 at 3 p.m.
C. August 2 at 11 p.m.
D. August 3 at 7 a.m.
E. August 3 at 3 p.m.
PS20408
100 pills, taken 3 times a day.
She took the first pill at 3 pm. The next two pills will be taken at 11 pm and 7 am respectively. Notice that at 7am she completed her first cycle of pills. Each cycle is completed at 7 am.
Since we have 1 more than a multiple of 3 (99 + 1), this must mean she finishes the 100 pills at 3 pm.
Since there are 31 days in July, she finishes her pills on August 3 at 3 pm. Answer is E.
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