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Ratio and Proportion — MATHS STD 7 — Question

Gujarat BoardEnglish MediumSTD 7MATHSRatio and Proportion1 Mark
MCQ
Mark against the correct answer in the following: If $\frac{\text{A}}{3}=\frac{\text{B}}{4}=\frac{\text{C}}{5}$ then $A : B : C = ?$
  • ✓
    $3 : 4 : 5$
  • B
    $4 : 3 : 5$
  • C
    $5 : 4 : 3$
  • D
    $20 : 15 : 12$
✓

Answer

Correct option: A.
$3 : 4 : 5$
$\frac{\text{A}}{3}=\frac{\text{B}}{4}=\frac{\text{C}}{5}=1$ (Suppose)
$\text{A}=3,\text{B}=4,\text{C} =5$
$\text{A : B : C}=3:4:5$

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