Chapter 6, Problem 14MCQ

To determine

To tell :whether the ratio from a proportion for $\frac{6}{31.2},\frac{2.5}{13}$ .

Answer to Problem 14MCQ

The ratio $\frac{6}{31.2},\frac{2.5}{13}$ isin a form of proportion.

Explanation of Solution

Given information : consider, the proportionprovided in the question,

  $\frac{6}{31.2},\frac{2.5}{13}$ .

Formula used :cross product property −

  $\begin{array}{l}\frac{a}{b}=\frac{c}{d}\\ ab=cb\\ \end{array}$

Calculation : to solve this use cross product property, if the ratios verify the cross product property then it will form the proportion.

Consider the ratios form proportion so use cross product property,

  $\frac{6}{31.2},\frac{2.5}{13}$

  $\begin{array}{l}\frac{6}{31.2}=\frac{2.5}{13}\\ 6·13=2.5·31.2\\ 78=78\end{array}$

Hence,

Thus,The ratio $\frac{6}{31.2},\frac{2.5}{13}$ is in a form of proportion.