The Census of India of 2011 gave 943 females for every 1000 males in the country…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
The Census of India of 2011 gave females for every males in the country. A village survey team wants to see what such a ratio means in a small place. In its model village there are people in all, and the number of females for every males is .
- How many males are in the village?
- How many females are in the village?
- How many more females would be needed for the number of females to equal the number of males?
- What per cent of the village is female? Give the answer to one decimal place.
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. Total: people. Sex ratio: females for every males.
Plan. Find the number of groups of people. Each group has males and females.
Step 1. The groups. groups.
Step 2. The males. people.
Step 3. The females. people. Check: .
Step 4. The gap. more females are needed.
Step 5. The share. .
Answer: males; females; more females; .
Check. A ratio below means fewer females than males, and a share below says the same thing.
Watch out. The sex ratio is females per males, not per people. Using people as the base gives a wrong answer.
Source. Office of the Registrar General, India (2011), Census of India 2011, for the ratio of .
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