एका जंगलात दोन वर्षापूर्वी 30,000 सागाचे वृक्ष होते. वृक्षतोडीमुळे दरवर्षी त्यांची संख्या शेकडा 6 ने घटली, तर आज त्या जंगलात सागाचे किती वृक्ष असतील ?

The correct answer is Option B (26,508).

Key Points:
• Percentage Decrease Depreciation Calculation:
• Step-by-step mathematical calculation:
• 1. Initial trees 2 years ago (P) = 30,000.
• 2. Annual rate of decrease (r) = 6%.
• 3. Time (n) = 2 years.
• 4. Formula for present number of trees:
• Trees today = P × (1 - (r)/(100))^n = 30,000 × (1 - (6)/(100))² = 30,000 × ((94)/(100))²
• 5. Calculating (94)²:
• 94² = 8,836
• 6. Multiplying:
• Trees today = 30,000 × (8,836)/(10,000) = 3 × 8,836 = 26,508
• Matches Option (2) 26,508.
• Key Takeaway: Present trees = 30,000 × (0.94)² = 3 × 8,836 = 26,508.