Alligation Cross: X draw karo. Cheaper top-left, dearer bottom-left, mean center mein. Cross-subtract = quantity ratio.
Ratio & Proportion Shortcuts
SBI POIBPS POSSC CGLRRB
Yaad Karne ki List
- a:b = 2:3 to actual values = 2k, 3k
- Alligation Cross: X banao, cheaper top-left, dearer bottom-left
- Partnership: Profit ratio = Capital × Time
- Division: A's share = A/(A+B+C) × Total
- Mean proportional = √(ab)
Mnemonic Tricks
Kaise Map Hota Hai
| Cue | Maps To |
|---|---|
| Top-left | Cheaper price |
| Center | Mean price |
| Bottom-left | Dearer price |
| Top-right | Dearer − Mean |
| Bottom-right | Mean − Cheaper |
Yeh Fast Kyun Hai
Alligation ek technique se mixture, partnership aur average problems solve karti hai.
Aksar Poochhe Jaane Wale Sawaal
Alligation method kya hai?
Visual cross method hai jo batata hai ki do different prices ki cheezein kis ratio mein mix karein desired mean ke liye.
Partnership quickly kaise solve karein?
Profit ratio = (Capital₁ × Time₁) : (Capital₂ × Time₂). Agar time equal hai to sirf Capital ka ratio.