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If the population is increased by 12% in 2015 and decreased by 12% in the next year then change in the population is

a)

1.44% decrease

b)

13.44% decrease

c)

14.4% increase

d)

1.344% decrease


Question ID - 55696 | Toppr Answer

If the population is increased by 12% in 2015 and decreased by 12% in the next year then change in the population is

a)

1.44% decrease

b)

13.44% decrease

c)

14.4% increase

d)

1.344% decrease

1 Answer - 5876 Votes

3537

Answer Key : (a) -

Let the population in 2014=100

As it increases by 12%

∴ Population in 2015=112

Now, the population decreases by 12%

∴ Population in 2016=112-13.44=98.56

∴ Population decreased = 100-98.56=1.44%

Alternative Method (Using T-2):

Here,

% decrease in population=



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