Banking Exam Maths: Shortcuts aur Tricks – Profit Loss Percentage
Banking Exam Math Shortcuts: Profit-Loss aur Percentage Tricks
Banking exams mein Quantitative Aptitude section mein time management bahut crucial hai. Ye shortcuts aur tricks aapko zyada questions sahi speed se solve karne mein help karenge.
đ° Profit-Loss Key Formulas
| Formula | Expression |
|---|---|
| Profit | SP – CP |
| Loss | CP – SP |
| Profit % | (Profit/CP) Ã 100 |
| Loss % | (Loss/CP) Ã 100 |
| SP (when profit%) | CP Ã (100+P%)/100 |
| CP (when SP and P% known) | SP Ã 100/(100+P%) |
⥠Speed Tricks for Percentage
Trick 1: Percentage to Fraction Conversion (Yaad kar lo!)
| Percentage | Fraction | Percentage | Fraction |
|---|---|---|---|
| 10% | 1/10 | 12.5% | 1/8 |
| 20% | 1/5 | 16.67% | 1/6 |
| 25% | 1/4 | 33.33% | 1/3 |
| 50% | 1/2 | 66.67% | 2/3 |
| 75% | 3/4 | 37.5% | 3/8 |
Trick 2: Successive Discounts/Profit Formula
Do successive changes (x% aur y%) ka net effect:
Net % = x + y + xy/100
Example: 20% profit ke baad 10% discount â Net = 20 + (-10) + 20Ã(-10)/100 = 10-2 = 8% profit
Trick 3: Marked Price Problems
- If MP = x% above CP, aur discount = y%, then
- Net profit% = x – y – xy/100
- Agar x = y, tab bhi loss hoga (xy/100 ki wajah se)
Practice Questions with Solutions
Q1: A sells goods to B at 20% profit. B sells to C at 25% profit. If C pays âš900, what did A pay?
Solution: C pays 900. B’s SP = 900. B bought at 900/1.25 = 720 (A’s SP). A bought at 720/1.20 = âš600
Q2: A trader marks 40% above CP and gives 25% discount. Find profit%.
Solution: Net = 40 + (-25) + 40Ã(-25)/100 = 40-25-10 = 5% profit
More practice questions ke liye Maths Mock Tests yahan dein! đ