Osteoporosis meaning
Osteoporosis is a medical condition in which bones become brittle and fragile due to a loss of bone mass and density, increasing the risk of fractures. It commonly affects older adults, especially postmenopausal women, due to hormonal changes that affect bone density. Risk factors for osteoporosis include aging, family history, low body weight, smoking, excessive alcohol consumption, and inadequate intake of calcium and vitamin D. Preventive measures and treatment options include a diet rich in calcium and vitamin D, regular weight-bearing exercise, lifestyle modifications, and medications that help to strengthen bones and reduce the risk of fractures.
Osteoporosis 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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