Question

A hurricane wiped out 40% of the wild rats in a coastal city. Then, a disease spread through stagnant water killing 20% of the rats that survived the hurricane. What percentage of the original population of rats is left after these 2 events

Answer 1

After the hurricane and the disease, it is expected to have forty eight (48%) of the original population of rats.

How many rats are there after the hurricane?

The hurricane wiped out the 40% of the population. This implies the 60% of the population survived

• 100 - 40 = 60

How many rats are there after thd disease?

This disease killed 20% out of the 60% of the survivors. Let's find out the percentage of rats after the disease

• 60% = 100%
• x =  20%
• x=  20 x 60/ 100
• x = 12%
• 60% - 12% = 48%

Learn more about percentages in: https://brainly.com/question/15054857

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