(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I just translated this word problem:

The zone of a alga increases every 2 month about the factor 4. How many days does the alga needs to increse into the double? How many days ago has the alga been the half?

2. Relevant equations

3. The attempt at a solution

1.) The first question states

The algae increases by a factor of 4 every 60 days. how many "days" does the alga needs to increse into the double?

So I got 4x = 60 multiplyed 2

x = 30 days

2.) I dont understand the second question.

How many days ago has the alga been the half?

I would appreciate some help, thanks.

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# Homework Help: A word problem

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