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The population of a country was 55 crose in 2005 and is growing at 2% p.a C.I. the population is the year 2015 is estimated as
  • a)
    5705
  • b)
    6005
  • c)
    6700
  • d)
    none of these
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The population of a country was 55 crose in 2005 and is growing at 2% ...
Given: Population in 2005 = 55 crores, Growth rate = 2% per annum

To find: Population in 2015

Formula used: A = P(1 + r/100)^n

Where,
A = Final amount
P = Principal amount
r = Rate of interest
n = Time period (in years)

Calculation:

Let's calculate the population for the year 2015 using the above formula.

Here,
P = 55 crores (Population in 2005)
r = 2% per annum (Growth rate)
n = 10 years (Time period from 2005 to 2015)

A = 55*(1 + 2/100)^10
A = 55*(1.02)^10
A = 55*1.22
A = 67.1 crores

Therefore, the estimated population of the country in the year 2015 is 67.1 crores.

Answer: Option (d) none of these.
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Community Answer
The population of a country was 55 crose in 2005 and is growing at 2% ...
55cr X 2%=1.1cr
multiply it with no. of years:
1.1cr X 15=16.5 cr
then,
55cr+16.5cr=71.5 cr
So Answer option (d)
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The population of a country was 55 crose in 2005 and is growing at 2% p.a C.I. the population is the year 2015 is estimated asa)5705b)6005c)6700d)none of theseCorrect answer is option 'D'. Can you explain this answer?
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