Bank Exam Profit, Loss & Discount – Page 9 (Premium Guide)
Concept • Successive Percentage • Discount Tricks • Exam Strategy
Core Formulas
Profit = SP − CP
Loss = CP − SP
Profit% = (Profit / CP) × 100
Loss% = (Loss / CP) × 100
Basic Practice
Q1. CP = 100, SP = 120
Profit = 20 → Profit% = 20%
Q2. CP = 200, SP = 240
Profit% = 20%
Q3. CP = 400, SP = 360
Loss = 40 → Loss% = 10%
Q4. CP = 800, SP = 720
Loss% = 10%
Successive Percentage
Formula: (1 ± a/100)(1 ± b/100)
Q5. 10% profit twice
= 1.1 × 1.1 = 21% profit
Q6. 20% loss twice
= 0.8 × 0.8 = 36% loss
Q7. 20% gain then 20% loss
= 1.2 × 0.8 = 4% loss
Discount Concepts
SP = MP × (1 − Discount%)
Q8. MP = 1000, Discount = 20%
SP = 800
Q9. MP = 500, Discount = 10%
SP = 450
Q10. MP = 800, Discount = 25%
SP = 600
Combined Problems
Q11. CP = 1000, Profit 20%, Discount 10%
SP = 1200 × 0.9 = 1080
Q12. CP = 500, Loss 10%, Discount 20%
SP = 450 × 0.8 = 360
Q13. MP = 1000, Discount 20%, Profit 25%
CP = 800 / 1.25 = 640
Q14. CP = 600, SP = 480
Loss% = 20%
Q15. CP = 800, SP = 1000
Profit% = 25%
Topper Tips
- Use multiplication method (1 ± x)
- Convert percentages into decimals quickly
- Avoid long calculations
- Apply successive formula directly
Exam Strategy
- Attempt easy percentage-based questions first
- Use approximation in options
- Focus on accuracy
Final Tip
Convert → Multiply → Solve Quickly
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