Question

the population of a city was 120000 in the year 2013 during next year it increased by 6% but due to an epidemic it increased by 5% in the following your what was it population in the year 2015​

Answer 1

Answer:

Population in 2013 =120000

It increased at the rate of 6%

Population in 2014 = P(1+ R/100)n

=120000 (1 +6/100)1

=120000 (53 /50 )

= 127200

Therefore,Population in 2014 =127200

It decreased at the rate of 5%

Population in 2015 =P(1- R/100)n

= 127200 (1-5/100)1

=127200 (19/20)

=120840

Hence, population in 2015 was 120840.

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Answer 2

Answer:

Population in 2013 =120000

It increased at the rate of 6%

Population in 2014 = P(1+ R/100)n

=120000 (1 +6/100)1

=120000 (53 /50 )

= 127200

Therefore,Population in 2014 =127200

It decreased at the rate of 5%

Population in 2015 =P(1- R/100)n

= 127200 (1-5/100)1

=127200 (19/20)

=120840

Hence, population in 2015 was 120840.

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