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In a group of people, 28% of the members... - Quantitative Aptitude | Percentage |

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The question below is from previous year CAT question from CAT 2020 exam comes from sub-section Percentage: In a group of people, 28% of the members… 

Find out by answering this question which tests an aspirant’s Quantitative Ability Skills:

CAT 2020 – Slot 1 - Percentage- Question 23 - In a group of people, 28% of the members...

Question 23: 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

1. 59
2. 62
3. 66
4. 55

Answer:

23. C.

In a group 28% are young, 72% are old

In the same group 65% are literates and 35% are illiterates

Young literates = 1/4 (65%) = 16.25%, So remaining 11.75% are young illiterates

Out of 35% illiterates = 11.75% is young and remaining 23.25% are old illiterates

So, 23.25/35 × 100 ≅ 66

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