The population of a city in 2014 was 8000000. If in 2015, there is an increment of 8%, in 2016, there is a decrement of 35% and in 2017, there is an increment of 65%, then what is the population of the city at the end of the year 2017?

Solution (By Examveda Team)

$$\eqalign{ & 8\% = \frac{{ + 2}}{{25}},\,35\% = \frac{{ - 7}}{{20}},\,65\% = \frac{{ + 13}}{{20}} \cr & 8000000 \times \frac{{27}}{{25}} \times \frac{{13}}{{20}} \times \frac{{33}}{{20}} \cr & = 800 \times 27 \times 13 \times 33 \cr & = 9266400{\text{ Answer}} \cr} $$