Question 3 - Medicine: Usage Time and Daily Cost Problem

Individuals’ Medicine: Usage Time and Daily Cost Problem

3-Mary was prescribed a medicine in liquid form. It cost her $36.85. The bottle contains 300 ml and she has been advised by her doctor to take 20 ml three times every day. How long will her medicine last and what is the daily cost?

Solution: 

PART 1-My Calculation

With a calculator, the figures are found as follows:

*Cost per ml = $36.85 ÷ 300 ml 

*Each day, Mary needs 20 ml x 3 times per day = 60 ml

1-How long will medicine last?

        300 ml ÷ 60 ml per day = 5 days                  

2-What is the daily cost?

This is calculated from cost per ml 

        ($36.85 ÷ 300 ml ) x 60 ml = $7.37 per day

Therefore, Mary's medicine will last in 5 days and each day the cost will be $.37

Notes:

Why do the medicine usage time and the daily cost matter? 

My view for an issue here is that Mary might need to plan and arrange her budget for her own personal health.

PART2- A COLLECTION OF PEERS' FEEDBACK

This task is also posted on 
*my google site Learning Teaching Adult Numeracy in VET at https://sites.google.com/site/lydiale2016eeb308csu/how-long-and-what-is-the-daily-cost;