Ratio and Proportion
ICSE · Class 6 · Mathematics
All formulas from Ratio and Proportion in ICSE Class 6 Mathematics. Key equations, constants, and identities for board exam preparation.
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Formulas
Ratio
a : b = \frac{a}{b}
a : b = (a \times k) : (b \times k)
Proportion
a : b :: c : d \Rightarrow a \times d = b \times c
a : b = b : c \Rightarrow b^2 = a \times c
Unitary Method
Value of 1 unit = \frac{\text{Total Value}}{\text{Number of Units}}
Value of n units = (Value of 1 unit) \times n
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