CAT 2020 Slot 1 QA Question 17: In a group of people, 28% of the members are young while the rest are old. If 65% of the members are literates, and 25% of the literates are young, then the percentage of old people among the illiter

Question

In a group of people, 28% of the members are young while the rest are old. If 65% of the members are literates, and 25% of the literates are young, then the percentage of old people among the illiter

Accepted Answer

Let the total number of people be 100.

Young people = 28, so old people = 72
Literates = 65
Young literates = $\dfrac{25}{100} 	imes 65 = 16.25$
Old literates = $65 - 16.25 = 48.75$

Illiterates = $100 - 65 = 35$
Old illiterates = $72 - 48.75 = 23.25$

Percentage of old people among illiterates =

In a group of people, 28% of the members are young while the rest are old. If 65% of the members are literates, and 25% of the literates are young, then the percentage of old people among the illiterates is nearest to