Question

47. The population of a town increases every year by 2%
of the Population at the beginning of that year. The
number of years by which the total increase of
population be 40% is -
(a) 7 years
(b) 10 years
(c) 17 years (app)
(d) None of these​

Answer 1

Answer:

Increase per year= 2%

Let increase Years=x

So, In x years increase=40%

X=40/2

=20 years

(d) none of these