Peter has to take 80 mg of a drug to control his blood pressure. The following graph shows the initial amount of the drug, and the amount that remains active in Peter’s blood after one, two, three and four days
Answers
Answer:
Peter has to take 80 mg of a drug to control his blood pressure.
graph shows the initial amount of the drug, and the amount that remains active in Peter’s blood after one, two, three and four days
To Find : How much of the drug remains active at the end of the first day?
6 mg.
12 mg.
26 mg.
32 mg.
At the end of each day which of the following is the approximate percentage of the previous day’s drug that remains active?
50%
80%
20%
40%
Solution:
x - axis represents number of days
y - axis represents amount that remains active in Peter’s blood
From Graph against 1 on x axis is 32
Hence drug remains active at the end of the first day =32 mg
Start of day End of Day %
80 32 (32/80)* 100 = 40%
32 12 (12/32)*100 = 37,5 %
12 6 (6/12) * 100 = 50%
Approx. 40% is correct option
drug remains active at the end of the first day =32 mg
approximate percentage of the previous day’s drug that remains active 40%