Question

25 percent of all wise people are nice and half of all nice people are wise. Further 25 percent of all people are neither wise nor nice, what percentage of all the people are both wise and nice? Select one:
a. 10 percent
b. 25 percent
c. 20 percent
d. 15 percent

Answer 1

Step-by-step EXPLANATION:

we can say that if 25 percent people nighter wise nor nice

75 percent people have one option from two things .

$case (1) \: 25 \: percent \: wise \: \\ people \: are \: nice \: .$

now we are breaking wise section into 4 quarters .

half nice people are nice it means one 25 percent section of the wise people group is half for everybody . it is nice ..

$case (2) \: for \: our \: 75 \: percent \: \\ from \: above \: people \: ..$

we have to divided by 5 because we have 5 section .

$= \frac{75}{5} = 15\%$

from the all information we are getting 15 %

it means 15% population represented of each section ..

your answer is 15 % ...

Thank you....