Question : Directions: The bar graph shows the number of males and females (in crores) in India from 1951-1991. Read the graph and answer the following question:
Assuming that the rate of increase in the total population in India during 1991-2001 remains the same as it was during the period 1981-1991, estimate the total population in India in 2001:
Option 1: 105.62 crore
Option 2: 106.25 crore
Option 3: 106.52 crore
Option 4: 105.26 crore
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Correct Answer: 106.25 crore
Solution :
As per the given bar graph:
The total population in 1981 = 35 + 33 = 68 crore
The total population in 1991 = 44 + 41 = 85 crore
Total increase in population from 1991 to 1981 = 85 – 68 = 17 crore
Percentage increase = $\frac{\text{Total increase in population}}{{\text{The total population in 1981}}}×100$
Percentage increase = $\frac{\text{17}}{{\text{68}}}×100=25\%$
So, total population in 2001 = 125% of 85 crore
= $\frac{85×125}{100}$
= 106.25 crore
Hence, the correct answer is 106.25 crore.
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