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Question

The population of a village was 2,90,000. It increased by 5% in the first year and increased by 30% in the second year. Its population after two years is _______.

The correct answer is
3,95,850

Initial Village Population

The starting population of the village is given as 2,90,000.

Population Increase in the First Year

The population increased by 5% in the first year.

  • Calculate the increase amount:

    Increase = Initial Population $\times$ Percentage Increase

    Increase = $2,90,000 \times \frac{5}{100}$

    Increase = $2,900 \times 5 = 14,500$

  • Calculate the population after the first year:

    Population (Year 1) = Initial Population + Increase

    Population (Year 1) = $2,90,000 + 14,500 = 3,04,500$

Population Increase in the Second Year

The population further increased by 30% in the second year, based on the population at the end of the first year.

  • Calculate the increase amount for the second year:

    Increase = Population (Year 1) $\times$ Percentage Increase

    Increase = $3,04,500 \times \frac{30}{100}$

    Increase = $3,045 \times 30 = 91,350$

  • Calculate the final population after the second year:

    Population (Year 2) = Population (Year 1) + Increase

    Population (Year 2) = $3,04,500 + 91,350 = 3,95,850$

Final Population Calculation

The population of the village after two years is 3,95,850.

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Important Questions from Percentage

  1. A number p increased by p% of 99 equals 99 increased by 99% of p. What is (p + 51)% of 928 + 72?

  2. Amina saves 16% of her income. Now her income is increased by 20% but she still saves the same amount as before. What is the percentage increase in her expenditure?

  3. What is 12% of 4% of 7% of 2 × 10 6 ?

  4. Vignesh spends 42% of his monthly salary on food, 16% on house rent, 11% on entertainment and 7% on conveyance. But due to some family function, he has to borrow Rs. 12,000 from a money leader to meet the expenses of Rs. 18,000 What is his monthly salary?

  5. If X is 12.25% more than Y. then Y is approximately_____ less than X.

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