Question:The population of a town is `18000`. It increases by `10%` during first year and by `20%` during the second year. The population after `2` years will be :
A `19800`
B `21600`
C `23760`
D None
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+ Answer
C
+ ExplanationRequired population `= 18000 xx (1 + (10)/(100)) xx (1 + (20)/(100))`
`= (18000 xx (11)/(10) xx 6/5)`
`= 23760`.