Question

If the cost of $6$ cans of juice is $Rs180$, then:

Cost of ______ cans of juice is $Rs270$.

Answer 1

Given that,

Cost of $6$ cans of juice $=$ $Rs180$

Assume, Cost of $x$ cans of juice is $Rs270$.

In proportion, we can write ratio of cans to the cost of cans as

$6:x::180:270$

Therefore,

$$\begin{gathered} \frac{6}{x}=\frac{180}{270} \\ \Rightarrow x=\frac{6\times 270}{180} \\ \Rightarrow x=9 \end{gathered}$$

Hence, cost of $9$ cans of juice is $Rs270$