ratio and proportion formula in hindi:all type questions and solution
Numerator और Denominator
किसी fraction को a/b लिखने पर ऊपर की संख्या Numerator (अंश) और नीचे की संख्या Denominator (हर) कहलाती है।
3 Numerator / 5 Denominator
Ratio: a:b | Percentage: (Numerator ÷ Denominator) × 100
Important Formula Revision
| Concept | Formula |
|---|---|
| Fraction | Numerator / Denominator |
| Percentage | (Numerator / Denominator) × 100 |
| Proportion | a:b = c:d ⇒ ad = bc |
| Mean Proportional | √(ab) |
| Third Proportional | b²/a |
| Fourth Proportional | bc/a |
| Compound Ratio | ac:bd |
| Duplicate Ratio | a²:b² |
| Triplicate Ratio | a³:b³ |
| Direct Proportion | x₁/y₁ = x₂/y₂ |
| Inverse Proportion | x₁y₁ = x₂y₂ |