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If the population increases from 80 lakh to 88 lakh, what is the growth percentage?

Answer and explanation

Correct answer: 10 percent

Direct answer: B, 10 percent. First find the absolute increase: 88 lakh - 80 lakh = 8 lakh. Growth percentage is calculated by dividing the increase by the initial population and multiplying by 100: (8 / 80) × 100 = 10 percent. The initial population is the base because the question asks how much larger the population became compared with its starting size. Option A is wrong because 8 lakh is the absolute increase, not the percentage. Option B is correct because 8 is one-tenth of 80, and one-tenth equals 10 percent. Option C is wrong because the calculation does not give 12 percent. Option D is wrong because 20 percent of 80 lakh would be 16 lakh, not 8 lakh. Memory cue: growth percentage = increase ÷ initial value × 100.

Related tags

Growth PercentagePopulation CalculationInitial PopulationPopulation GrowthPopulationGeographyClass 9 Mcq

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