A health officer studies six requests for the termination of a pregnancy…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A health officer studies six requests for the termination of a pregnancy. The pregnancies are at , , , , and weeks, counted from the last menstrual period. Use the limit of NCERT for the first trimester, which is weeks.
- In how many of the six requests is the pregnancy within the first trimester?
- What per cent of the six is that?
- By how many weeks is the last pregnancy beyond the limit?
- Which period does NCERT call very risky?
Need a reminder? The key ideaShow
Medical termination of pregnancy (MTP) is considered relatively safe up to the first trimester, which is weeks of pregnancy. NCERT says that the to million MTPs of a year are about of all conceived pregnancies. Amniocentesis tests the amniotic fluid, and a law bans its use for finding the sex of the child. A sex ratio is the number of females for every males.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Given. Weeks: , , , , , . The limit is weeks.
Plan. Count the weeks that are or less, change the count to a per cent, and subtract for the last case.
Step 1. Within the limit. , and are within it. That is cases.
Step 2. The per cent. .
Step 3. The last case. weeks beyond the limit.
Step 4. The risky period. NCERT calls the second trimester very risky.
Answer: cases; ; weeks; the second trimester.
Check. The three cases beyond the limit are the ones at , and weeks, so .
Watch out. Week is inside the limit. The first week outside it is week .
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