Question

The cost of $105$ envelopes is$₹350.$ How many envelopes can be purchased for$₹100$?

Answer 1

Given

The number of envelopes purchased for $₹350=105$

The number of envelopes purchased for $₹1=₹\left(\frac{105}{350}\right)$

$\therefore$The number of envelopes purchased for $₹100=₹\left(\frac{105}{350}\times 100\right)$

$$\begin{gathered} =₹\left(\frac{1050}{35}\right) \\ =₹30 \end{gathered}$$

Hence, the required solution is $₹30$