AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
IMR indicates the number of children that die before the age of one year as a proportion of 1000 live births in that particular year.
Source: Income and Other Criteria, Chapter 1
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The textbook gives a precise definition of IMR in Table 1.4's explanation. Examiners expect this exact meaning — "before age one year" and "per 1000 live births" are the two key phrases that fetch the mark. Do not write a vague answer like "it measures child deaths."