Question

1.The population of city increases every year at the rate of 10% if the popukation now is 12,5,00,000 what will be the population after 4years
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Answer 1

Present population 12500000

Rate of interest = 10%

Population after 4 years = P(1+r/100)

12500000 (1+ 10 ) ⁴

100

12500000 × 110 × 110 × 110 × 110 (zero is divided by zero

100 × 100 × 100 × 100 so we get)

125 × 110 × 11 × 11 × 11 = 18301250

So population after 4 years is 18,3,01,250

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