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Question

The number of illiterate persons in a country decreased from $150$ lakhs to $100$ lakhs in $10$ yrs.Find the decrease in percentage?

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Solution

Decrease in percentage $= \frac{o r i g i n a l c o u n t - n e w c o u n t}{o r i g i n a l c o u n t} \times 100$
Decrease in percentage $= \frac{150 - 100}{150} \times 100 = \frac{50}{150} \times 100 = \frac{100}{3} = 33.3 %$

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