Question : Directions: The bar graph shows the number of males and females (in crores) in India from 1951 to 1991. Read the graph and answer the following question:
What is the ratio of the number of females in India in 1961 per thousand males to the number of males in India in 1991 per thousand females?
Option 1: 943 : 1077
Option 2: 1077 : 943
Option 3: 861 : 1012
Option 4: 913 : 1073
Correct Answer: 861 : 1012
Solution :
As per the given bar graph:
The number of females in India in 1961 = 21 crore
The number of males in India in 1961 = 23 crore
R
1
= $\frac{\text{The number of females in India in 1961}}{\text{The number of males in India in 1961}}× 1000=\frac{21}{23}×1000$
The number of males in India in 1991 = 44 crore
The number of females in India in 1991 = 41 crore
R
2
= $\frac{\text{The number of males in India in 1961}}{\text{The number of females in India in 1961}}× 1000=\frac{44}{41}×1000$
Required ratio = R
1
: R
2
Required ratio = $\frac{21}{23}×1000$ : $\frac{44}{41}×1000$
Required ratio = 861 : 1012
Hence, the correct answer is 861 : 1012.
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