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If the previous population was sixteen lakh and the current population is twenty-four lakh, what is the growth percentage?

Answer and explanation

Correct answer: Fifty percent

The direct answer is C: fifty percent. Growth percentage is calculated by comparing the increase with the previous population. First find the absolute increase: current population − previous population = 24 lakh − 16 lakh = 8 lakh. Then apply the formula: growth percentage = (increase ÷ previous population) × 100. Thus, (8 ÷ 16) × 100 = 0.5 × 100 = 50%. The lakh units cancel because both populations use the same unit. Option A, 25%, is incorrect because 4 lakh would be 25% of 16 lakh, not the actual increase of 8 lakh. Option B, 40%, does not come from the correct ratio. Option C is correct because 8 lakh is exactly half of 16 lakh. Option D, 60%, is also not the increase as a share of the original population. Common warning: use the previous population as the denominator, not the current population.

Related tags

Growth PercentagePopulation IncreaseArithmeticPopulation GrowthPopulationGeographyClass 9 Mcq

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