MediumBiologyHigh School (9–10)GeneralBiology in Human Welfare › Improvement in Food ResourcesNumerical
A farm keeps 450 layer hens. On an ordinary day, 72 out of every 100 hens lay an egg…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A farm keeps layer hens. On an ordinary day, out of every hens lay an egg. How many eggs are laid in a day, and in a week? An egg sells for rupees. What is the income from eggs in a week?
Need a reminder? The key ideaShow
Layers give eggs and broilers give meat. Composite fish culture rears catla (top), rohu (middle), mrigal and common carp (bottom) and grass carp (weeds) in one pond, and hatcheries give pure fish seed. Fish die before harvest, so fewer fish are caught than were stocked.
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.
Step 1. Eggs in a day. eggs.
Step 2. Eggs in a week. eggs.
Step 3. The income. rupees.
Answer: eggs a day, eggs a week, and rupees.
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