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Question

In a city, 40% of the people are illiterate and 60% are poor. Among the rich, 10% are illiterate. What percentage of the poor population is illiterate?

A
36%
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B
40%
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C
60%
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D
None of these
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Solution

The correct option is B 36%
Percentage of rich people=100%60%=40%
Percentage of rich illiterates10%×40%=4%
Percentage of illiterate people=40%
Percentage of poor illiterates40%4%=36%

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