The present population of a village is 15000. If it rises to 32955 during next 3 years, then find un

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22 Jan 2018 Population

The present population of a village is 15000. If it rises to 32955 during next 3 years, then find uniform rate of growth in population.

OPtion

1) 20
2) 22.5
3) 25
4) 27.5
5) 30
6) 32.5
7) 29
8) 31
9) 33
10) None of these

Solution

Poplation after n years = P[1+R/100]^n
=> 32955 = 15000 [1+R/100]^3
=> 2.197 = [1+R/100]^3
=> [1+R/100] = 1.3
=> R = 30%

Correct Option: 5 Best Solution (5)