Rheumatoid Arthritis meaning
Rheumatoid arthritis is a complex, chronic autoimmune condition characterized by persistent inflammation that primarily targets the body's joint structures. This disorder stands out for its symmetrical pattern, often affecting the same joints on both sides of the body simultaneously. The hallmark of rheumatoid arthritis is the immune system's misguided attack on the synovium, the soft tissue lining the joints, leading to swelling, pain, and eventual joint deformity. While it predominantly affects smaller joints like those in the hands and feet, it can also impact larger joints and even extend beyond the skeletal system to organs such as the skin, eyes, and lungs. The chronic nature of rheumatoid arthritis means that it persists over extended periods, with symptoms that may fluctuate in intensity, often featuring periods of increased disease activity known as flares. The inflammatory process at the core of this condition not only causes joint discomfort but can also result in systemic effects, including fatigue and general malaise. Understanding rheumatoid arthritis as more than just joint pain is crucial, as it represents a systemic inflammatory disorder with far-reaching implications for an individual's overall health and quality of life
Rheumatoid Arthritis 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.
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