MediumBiologyHigh School (9–10)GeneralBiology in Human Welfare › Improvement in Food ResourcesNumerical
A pond is stocked with 2400 fingerlings…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A pond is stocked with fingerlings. Of every , survive to the harvest, and each fish then weighs kg on average. How many fish are harvested, what is their total mass, and what do they earn at rupees for each kg?
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. The fish. fish.
Step 2. The mass. kg.
Step 3. The earnings. rupees.
Answer: fish, kg, and rupees.
Discussion (0)
Log in to join the discussion.
Loading…