Mathematics: Ascientist is looking at 1000 germs under a microscope andfinds that the germs double in number every 4 hours. using, how many germs will there be in 7 hours.

its AStep-by-step explanation: a...

Ascientist is looking at 1000 germs under a microscope

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02.01.2022

3500

Step-by-step explanation:

Number of germs that a scientist can see under a microscope = 1000 germs

We need to find how many germs will there be in 7 hours if the germs double in number every 4 hours .

It's given that the germs double in number every 4 hours .

So, increase in number of germs in one hour = $\frac{2}{4}=\frac{1}{2}$

Increase in number of germs in seven hours = $\frac{7}{2}$

Therefore , number of germs in 7 hours = Increase in number of germs in seven hours × Number of germs initially

= $\frac{7}{2}\times 1000=7\times 500=3500$

So, number of germs in 7 hours if the germs double in number every 4 hours = 3500

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