According to a survey conducted in a city, 25% were doctors, 30% engineers, 15% businessmen and rest were illiterates. If the total population of the city is 5000, the number of illiterates is ___ .

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Solution

Percentage of illiterates = 100 - (25 + 30 + 15) = 30.
So,number of illiterates = 30% of 5000
$= \frac{30}{100} \times 5000 = 1500$

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According to a survey conducted in a city, 25% were doctors, 30% engineers, 15% businessmen and rest were illiterates. If the total population of the city is 5000, the number of illiterates is ___ .

Percentage of illiterates = 100 - (25 + 30 + 15) = 30. So,number of illiterates = 30% of 5000 =30100×5000=1500

Percentage of illiterates = 100 - (25 + 30 + 15) = 30.
So,number of illiterates = 30% of 5000
$= \frac{30}{100} \times 5000 = 1500$