Question
If A : B = 3 : 5, B : C = 10 : 13, find A : B : C.
✓
Answer
$\text{A : B} = 3 : 5, \text{B : C} = 10 : 13$
Or $\frac{\text{A}}{\text{B}}=\frac{3}{5}\times\frac{2}{2}=\frac{6}{10}$
$(\because\text{in }\frac{\text{B}}{\text{C}}=\text{B}=10)$
$\therefore\frac{\text{A}}{\text{B}}=\frac{6}{10}$ and $\frac{\text{B}}{\text{C}}=\frac{10}{13}$
$\text{A : B : C}=6:10:13$
Or $\frac{\text{A}}{\text{B}}=\frac{3}{5}\times\frac{2}{2}=\frac{6}{10}$
$(\because\text{in }\frac{\text{B}}{\text{C}}=\text{B}=10)$
$\therefore\frac{\text{A}}{\text{B}}=\frac{6}{10}$ and $\frac{\text{B}}{\text{C}}=\frac{10}{13}$
$\text{A : B : C}=6:10:13$
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