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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. In an examination, 25% of the candidates failed in Mathematics and 12% failed in English. If 10% of the candidates failed in both the subjects and 292 candidates passed in both the subjects, which one of the following is the number of total candidates appeared in the examination?

  2. What is the value of 9% of 5500 + 2.4% of 1100 - 40% of 1600?

  3. Population of a village is 7960 in which 4660 are female. If in that village 60% are literate in which 70% female are literate, then what is the number of literate male ?

  4. The numbers of students of three classes of a school are in the ratio 4 : 5 : 6. If numbers of students in these classes increase by 25%, 20% and 25% respectively, then ratio of numbers of students will become:

  5. In an examination, Ram obtained 20 % more than Ashok but 10% less than Rajesh. If the marks obtained by Ashok is 1080. Then the Percentage marks obtained by Rajesh if the full marks is 2000 ;

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