Gujarat BoardEnglish MediumSTD 7MATHSRatio and Proportion1 Mark
Question
If A : B = 2 : 3 and B : C = 4 : 5, then C : A = ______.
✓
Answer
If A : B = 2 : 3 and B : C = 4 : 5, then C : A = 15 : 8. Solution: $\frac{\text{A}}{\text{C}}=\frac{\text{A}}{\text{B}}\times\frac{\text{B}}{\text{C}}$ $=\frac{2}{3}\times\frac{4}{5}=\frac{8}{15}$ $\therefore\text{C : A}=15:8$
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