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The population of a village is 80000 at present, If every year in some family member of village new babies are born due to which population of village is increased by 20% each year. What will be the population of village after two years.?

The population of a village is 80000 at present, If every year in some family member of village new babies are born due to which population of village is increased by 20% each year. What will be the population of village after two years.? Correct Answer 115200

Given

The population of a village is 80000 at present.

Increased by 20% each year.

Concept 

For two years.

New Population =

Calculate 

⇒ Increased in population = 80000 × (20/100)

⇒ Increased in population = 16000

⇒ Population of village for first year after increment = 80000 + 16000

⇒ Population of village for first year after increment = 96000

Now,

⇒ For second year increased in population = 96000 × (20/100)

⇒ For second year increased in population = 19200

⇒ Population of village for second year after increment = 96000 + 19200

⇒ Population of village for second year after increment = 115200

⇒ After two years population of village becomes = 115200

∴ After two years population of village becomes = 115200

Alternate method 

⇒ New population =

⇒ New population = 115200 

∴ New population 115200

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