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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

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Explanatory Answer

In a group 28% are young, 72% are old
In the same group 65% are literates and 35% are illiterates
Young literates = \\frac{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, \\frac{23.25}{35}) × 100 ≅ 66


The answer is, "66"

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