Question

the IUCN Red List of Threatened Species notes that 36% of the 47,677 species assessed are threatened with extinction. How many species are currently threatened?

Answer 1

17164 species

Explanation:

Given that there are a certain type of species. The IUCN red list of threatened species took survey and found that

our of 47,677 species in total 36% are currently threatened.

We know that percent is nothing but a fraction with denominator as 100

Hence if x is the number of species which are currently threatended,

we have
`(x)/(47677) =(36)/(100)`

Simplify to get

x =
`47677(36/100) = 17163.72 =17164`

Thus 17164 species are currently threatened.