Question

Solve the following problems using the method of proportion.

Twenty oranges can be packed in $4boxes$. How many oranges can be packed in $18boxes$?

Answer 1

Step 1: Let $x$ organges can be packed in $18boxes$,

Then, $20:4::x:18$

We know that in proportion,

Product of extreme terms$=$ Product of middle terms

$$\begin{gathered} 20\times 18=4\times x \\ \Rightarrow x=\frac{20\times 18}{4} \\ \Rightarrow x=90 \end{gathered}$$

Final Answer: Hence, $90$ oranges can be packed in $18boxes$.