Go to the market and collect the prices of different sizes of shampoo containers of the same shampoo and create a table like the one given below. See if the volume of shampoo is proportional to the price. 
 
Container Volume Price
Sachet \(8 \ mL\) \(₹ 2\)
Small Bottle \(240 \ mL\) \(₹ 156\)
Medium Bottle \(340 \ mL\) \(₹ 276\)
Large Bottle \(1000 \ mL\) \(₹ 540\)
 
Compare the ratios of sachet to a small bottle in terms of volume and price. Are these ratios proportional?
 
Ratio of volume of a sachet to a small bottle \(=\) i:i
 
Ratio of prices of a sachet to a small bottle \(=\) i:i
 
 
[Note: Enter the simplest ratio]