International demographic literature frequently quotes the sex ratio at birth as approximately 105, meaning male births per 100 female births. The Census of India, however, follows a different convention. If India adopted the international convention for its reported overall sex ratio of 940 (Census 2011), the corresponding value would be approximately:

• A 1064 males per 100 females ✓
• B 940 males per 100 females
• C 94 males per 100 females
• D 105 males per 100 females

Explanation

The Census of India expresses sex ratio as females per 1000 males, whereas most international sources express it as males per 100 females. Converting 940 females per 1000 males means there are 1000 males for every 940 females, so per 100 females there are 100000 divided by 940, which equals approximately 1064 males. Option D quotes the sex ratio at birth figure, which is irrelevant here, and options B and C simply restate or misconvert the original number.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

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