Zoya gets a cold 4 times in a year, and each cold lasts 5 days…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Zoya gets a cold times in a year, and each cold lasts days. Her aunt has a long illness that lasts months. Take a month as days. How many days is each person ill, and how many times as many days is the aunt ill as Zoya?
Need a reminder? The key ideaShow
A disease is a failure of a part of the body to work well. An acute disease lasts a short time, for example a common cold. A chronic disease lasts a long time, even for life, for example tuberculosis, and harms health more. Symptoms are what the patient feels; signs are what the doctor finds.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Zoya. days.
Step 2. Her aunt. days.
Step 3. The ratio. .
Answer: Zoya is ill for days and her aunt for days, which is times as many.
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