Question:medium
For the Net Reproduction Rate (NRR) to be equal to 1, the couple protection rate should be at least?
For the Net Reproduction Rate (NRR) to be equal to 1, the couple protection rate should be at least?
Show Hint
Replacement-level fertility (NRR=1) needs CPR just above the 60% mark.
Updated On: Jun 23, 2026
- 50%
- 60%
- 55%
- 75%
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Frame the demographic goal. NRR = 1 is the textbook marker for a population that just replaces itself - one daughter per woman surviving to reproductive age. National family planning programmes use the Couple Protection Rate as the operational lever to reach this goal.
Step 2: Define the indicator. CPR measures the share of eligible couples shielded from an unplanned pregnancy by an approved method (sterilization, IUD, condoms, OCPs). A higher CPR pushes fertility downward toward replacement level.
Step 3: Pin the numeric threshold. Standard public health teaching states that NRR reaches 1 only when CPR exceeds 60%. The cut-off value asked for is therefore $60\%$.
Step 4: Eliminate the rest. Values of 50% and 55% fall short of the demographic break-even, while 75% overshoots the minimum the question seeks.
\[\boxed{60\%}\]
Step 2: Define the indicator. CPR measures the share of eligible couples shielded from an unplanned pregnancy by an approved method (sterilization, IUD, condoms, OCPs). A higher CPR pushes fertility downward toward replacement level.
Step 3: Pin the numeric threshold. Standard public health teaching states that NRR reaches 1 only when CPR exceeds 60%. The cut-off value asked for is therefore $60\%$.
Step 4: Eliminate the rest. Values of 50% and 55% fall short of the demographic break-even, while 75% overshoots the minimum the question seeks.
\[\boxed{60\%}\]
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