The present population of a country is 10 crores. If it rises to 17.28 crores during next 3 years, then find uniform rate of growth in population.
A. 20 %
B. 30 %
C. 40 %
D. 60 %
Answers
Answer:
b) 30 %
Step-by-step explanation:
population increases in three years = 7.28 crore
population increases every year= 7.28/3
rate of growth of population = 7.28/3/7.28×100
= 30%
please mark my answer brainliest.
Answer:
A) 20%
Step-by-step explanation:
To find population after n years = P [1+R] ^n
100
Here, we know that,
Present population of country = 10 crores
After 3 years, population of country = 17.28 crores
To find: Rate of growth R%
After 3 years, the population is 17.28 crores. Therefore,
P [1+R] ^n = 17.28
100
10 [1+R]^3 = 17.28
100
[1+R] ^3 = 17.28= 1728 = 12/10^3
100 10. 1000
1+R/100 = 2/10
1 + R = 1 + 2
100 10
R/100 = 2/10
R=20%
Rate of growth in population = 20 %
Hope it helps you
Please mark this answer as branliest and follow me to get more answers like this!!