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 |

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

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=