Zinc meaning
Zinc is a mineral essential for human health, involved in numerous aspects of cellular metabolism and required for the catalytic activity of approximately 100 enzymes. It plays a crucial role in immune function, protein synthesis, wound healing, DNA synthesis, and cell division. Zinc also supports normal growth and development during pregnancy, childhood, and adolescence and is necessary for the proper sense of taste and smell. Dietary sources of zinc include meat, shellfish, dairy products, nuts, and legumes. Deficiency in zinc can lead to growth retardation, loss of appetite, and impaired immune function.
Zinc meaning: Explanation, Formulae and Practice
These topics connect maths with money decisions. Always identify cost price, selling price, principal, rate and time before using a formula.
Practical Formulae
- Profit = selling price - cost price.
- Loss = cost price - selling price.
- Profit percentage = (profit / cost price) x 100.
- Simple interest = (principal x rate x time) / 100.
- Amount = principal + interest.
Solved Example
Question: An item is bought for Rs. 500 and sold for Rs. 575. Find the profit percentage.
Working: Profit = 575 - 500 = 75. Profit percentage = (75 / 500) x 100.
Result: Profit percentage = 15%.
Unanswered Practice Questions
Try these yourself before checking notes or calculators.
- Find the loss percentage when CP is Rs. 800 and SP is Rs. 720.
- Find simple interest on Rs. 5,000 at 8% per year for 2 years.
- A shopkeeper marks an item at Rs. 1,200 and gives 10% discount. Find the selling price.
Connected SaralStudy Resources
Explore More Sections
Related Articles & Insights
Discover more about Zinc meaning and related technologies
Latest Technology Insights
Stay updated with the latest trends in technology and software development.
Software Reviews & Comparisons
In-depth reviews and comparisons to help you choose the right tools.
Industry Trends & Analysis
Expert analysis of emerging trends shaping the tech industry.