The population of a city is 20000. It increases by 20% during

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The population of a city is 20000. It increases by 20% during the first year and 30% during the second year. The population after two years will be:

1. 32000
2. 40000
3. 31200
4. 30000

Correct Option: C

Population of city after two years

= P		1 +	R₁			1 +	R₂
			100				10

= P		1 +	20			1 +	30
			100				10

= 20000 ×	120	×	130	= 31200
	100		100