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The difference between the value of the number increased by 10% and the value of the number decreased by 20% is 72. Find the number.
What is the value of √25% =?
Out of her total income, Neha spent 40% on rent, 25% of the remaining income on groceries, and saved 55% of the income left after her expenses.
If the population of a city increases by 20% every year and is expected to be 43,200 after 2 years, then what is its present population?