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If an area's population increases from 40 lakh to 48 lakh, what is the absolute increase?

Answer and explanation

Correct answer: 8 lakh

Direct answer: B, 8 lakh, is correct. Absolute increase means the actual numerical change, not the percentage change. Write the final population and subtract the initial population: 48 lakh − 40 lakh = 8 lakh. The unit remains lakh because both given values use lakh. A is wrong because 4 lakh is half of the actual difference. C is wrong because it adds the two values incorrectly in relation to the question. D is wrong because 88 lakh is the sum of 40 lakh and 48 lakh, not their increase. Do not divide by the base unless the question asks for percentage growth. If percentage were required, the calculation would be (8 ÷ 40) × 100 = 20%, but that is not asked here. Memory cue: absolute increase = final value − initial value.

Related tags

Absolute IncreasePopulation CalculationLakhPopulation GrowthPopulationGeographyClass 9 Mcq

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